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17 | const fs = require('fs');
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18 | const EventEmitter = require('events');
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19 | const {helper, assert} = require('./helper');
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20 | const {ExecutionContext, JSHandle} = require('./ExecutionContext');
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21 | const {ElementHandle} = require('./ElementHandle');
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22 | const {TimeoutError} = require('./Errors');
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23 |
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24 | const readFileAsync = helper.promisify(fs.readFile);
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25 |
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26 | class FrameManager extends EventEmitter {
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27 | |
28 |
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29 |
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30 |
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31 |
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32 | constructor(client, frameTree, page) {
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33 | super();
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34 | this._client = client;
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35 | this._page = page;
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36 |
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37 | this._frames = new Map();
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38 |
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39 | this._contextIdToContext = new Map();
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40 |
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41 | this._client.on('Page.frameAttached', event => this._onFrameAttached(event.frameId, event.parentFrameId));
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42 | this._client.on('Page.frameNavigated', event => this._onFrameNavigated(event.frame));
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43 | this._client.on('Page.navigatedWithinDocument', event => this._onFrameNavigatedWithinDocument(event.frameId, event.url));
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44 | this._client.on('Page.frameDetached', event => this._onFrameDetached(event.frameId));
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45 | this._client.on('Page.frameStoppedLoading', event => this._onFrameStoppedLoading(event.frameId));
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46 | this._client.on('Runtime.executionContextCreated', event => this._onExecutionContextCreated(event.context));
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47 | this._client.on('Runtime.executionContextDestroyed', event => this._onExecutionContextDestroyed(event.executionContextId));
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48 | this._client.on('Runtime.executionContextsCleared', event => this._onExecutionContextsCleared());
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49 | this._client.on('Page.lifecycleEvent', event => this._onLifecycleEvent(event));
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50 |
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51 | this._handleFrameTree(frameTree);
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52 | }
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53 |
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54 | |
55 |
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56 |
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57 | _onLifecycleEvent(event) {
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58 | const frame = this._frames.get(event.frameId);
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59 | if (!frame)
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60 | return;
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61 | frame._onLifecycleEvent(event.loaderId, event.name);
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62 | this.emit(FrameManager.Events.LifecycleEvent, frame);
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63 | }
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64 |
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65 | |
66 |
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67 |
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68 | _onFrameStoppedLoading(frameId) {
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69 | const frame = this._frames.get(frameId);
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70 | if (!frame)
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71 | return;
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72 | frame._onLoadingStopped();
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73 | this.emit(FrameManager.Events.LifecycleEvent, frame);
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74 | }
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75 |
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76 | |
77 |
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78 |
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79 | _handleFrameTree(frameTree) {
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80 | if (frameTree.frame.parentId)
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81 | this._onFrameAttached(frameTree.frame.id, frameTree.frame.parentId);
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82 | this._onFrameNavigated(frameTree.frame);
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83 | if (!frameTree.childFrames)
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84 | return;
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85 |
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86 | for (const child of frameTree.childFrames)
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87 | this._handleFrameTree(child);
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88 | }
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89 |
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90 | |
91 |
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92 |
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93 | mainFrame() {
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94 | return this._mainFrame;
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95 | }
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96 |
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97 | |
98 |
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99 |
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100 | frames() {
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101 | return Array.from(this._frames.values());
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102 | }
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103 |
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104 | |
105 |
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106 |
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107 |
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108 | frame(frameId) {
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109 | return this._frames.get(frameId) || null;
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110 | }
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111 |
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112 | |
113 |
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114 |
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115 |
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116 |
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117 | _onFrameAttached(frameId, parentFrameId) {
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118 | if (this._frames.has(frameId))
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119 | return;
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120 | assert(parentFrameId);
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121 | const parentFrame = this._frames.get(parentFrameId);
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122 | const frame = new Frame(this._client, parentFrame, frameId);
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123 | this._frames.set(frame._id, frame);
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124 | this.emit(FrameManager.Events.FrameAttached, frame);
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125 | }
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126 |
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127 | |
128 |
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129 |
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130 | _onFrameNavigated(framePayload) {
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131 | const isMainFrame = !framePayload.parentId;
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132 | let frame = isMainFrame ? this._mainFrame : this._frames.get(framePayload.id);
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133 | assert(isMainFrame || frame, 'We either navigate top level or have old version of the navigated frame');
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134 |
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135 |
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136 | if (frame) {
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137 | for (const child of frame.childFrames())
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138 | this._removeFramesRecursively(child);
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139 | }
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140 |
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141 |
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142 | if (isMainFrame) {
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143 | if (frame) {
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144 |
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145 | this._frames.delete(frame._id);
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146 | frame._id = framePayload.id;
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147 | } else {
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148 |
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149 | frame = new Frame(this._client, null, framePayload.id);
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150 | }
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151 | this._frames.set(framePayload.id, frame);
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152 | this._mainFrame = frame;
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153 | }
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154 |
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155 |
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156 | frame._navigated(framePayload);
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157 |
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158 | this.emit(FrameManager.Events.FrameNavigated, frame);
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159 | }
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160 |
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161 | |
162 |
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163 |
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164 |
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165 | _onFrameNavigatedWithinDocument(frameId, url) {
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166 | const frame = this._frames.get(frameId);
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167 | if (!frame)
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168 | return;
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169 | frame._navigatedWithinDocument(url);
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170 | this.emit(FrameManager.Events.FrameNavigatedWithinDocument, frame);
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171 | this.emit(FrameManager.Events.FrameNavigated, frame);
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172 | }
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173 |
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174 | |
175 |
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176 |
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177 | _onFrameDetached(frameId) {
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178 | const frame = this._frames.get(frameId);
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179 | if (frame)
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180 | this._removeFramesRecursively(frame);
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181 | }
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182 |
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183 | _onExecutionContextCreated(contextPayload) {
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184 | const frameId = contextPayload.auxData ? contextPayload.auxData.frameId : null;
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185 | const frame = this._frames.get(frameId) || null;
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186 |
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187 | const context = new ExecutionContext(this._client, contextPayload, obj => this.createJSHandle(context, obj), frame);
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188 | this._contextIdToContext.set(contextPayload.id, context);
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189 | if (frame)
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190 | frame._addExecutionContext(context);
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191 | }
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192 |
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193 | |
194 |
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195 |
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196 | _onExecutionContextDestroyed(executionContextId) {
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197 | const context = this._contextIdToContext.get(executionContextId);
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198 | if (!context)
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199 | return;
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200 | this._contextIdToContext.delete(executionContextId);
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201 | if (context.frame())
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202 | context.frame()._removeExecutionContext(context);
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203 | }
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204 |
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205 | _onExecutionContextsCleared() {
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206 | for (const context of this._contextIdToContext.values()) {
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207 | if (context.frame())
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208 | context.frame()._removeExecutionContext(context);
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209 | }
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210 | this._contextIdToContext.clear();
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211 | }
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212 |
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213 | |
214 |
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215 |
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216 |
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217 | executionContextById(contextId) {
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218 | const context = this._contextIdToContext.get(contextId);
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219 | assert(context, 'INTERNAL ERROR: missing context with id = ' + contextId);
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220 | return context;
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221 | }
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222 |
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223 | |
224 |
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225 |
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226 |
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227 |
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228 | createJSHandle(context, remoteObject) {
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229 | if (remoteObject.subtype === 'node')
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230 | return new ElementHandle(context, this._client, remoteObject, this._page, this);
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231 | return new JSHandle(context, this._client, remoteObject);
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232 | }
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233 |
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234 | |
235 |
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236 |
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237 | _removeFramesRecursively(frame) {
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238 | for (const child of frame.childFrames())
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239 | this._removeFramesRecursively(child);
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240 | frame._detach();
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241 | this._frames.delete(frame._id);
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242 | this.emit(FrameManager.Events.FrameDetached, frame);
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243 | }
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244 | }
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245 |
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246 |
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247 | FrameManager.Events = {
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248 | FrameAttached: 'frameattached',
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249 | FrameNavigated: 'framenavigated',
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250 | FrameDetached: 'framedetached',
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251 | LifecycleEvent: 'lifecycleevent',
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252 | FrameNavigatedWithinDocument: 'framenavigatedwithindocument',
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253 | ExecutionContextCreated: 'executioncontextcreated',
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254 | ExecutionContextDestroyed: 'executioncontextdestroyed',
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255 | };
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256 |
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257 |
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258 |
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259 |
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260 | class Frame {
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261 | |
262 |
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263 |
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264 |
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265 |
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266 | constructor(client, parentFrame, frameId) {
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267 | this._client = client;
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268 | this._parentFrame = parentFrame;
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269 | this._url = '';
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270 | this._id = frameId;
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271 |
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272 |
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273 | this._documentPromise = null;
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274 |
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275 | this._contextPromise = null;
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276 | this._contextResolveCallback = null;
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277 | this._setDefaultContext(null);
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278 |
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279 |
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280 | this._waitTasks = new Set();
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281 | this._loaderId = '';
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282 |
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283 | this._lifecycleEvents = new Set();
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284 |
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285 |
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286 | this._childFrames = new Set();
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287 | if (this._parentFrame)
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288 | this._parentFrame._childFrames.add(this);
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289 | }
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290 |
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291 | |
292 |
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293 |
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294 | _addExecutionContext(context) {
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295 | if (context._isDefault)
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296 | this._setDefaultContext(context);
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297 | }
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298 |
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299 | |
300 |
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301 |
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302 | _removeExecutionContext(context) {
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303 | if (context._isDefault)
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304 | this._setDefaultContext(null);
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305 | }
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306 |
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307 | |
308 |
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309 |
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310 | _setDefaultContext(context) {
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311 | if (context) {
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312 | this._contextResolveCallback.call(null, context);
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313 | this._contextResolveCallback = null;
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314 | for (const waitTask of this._waitTasks)
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315 | waitTask.rerun();
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316 | } else {
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317 | this._documentPromise = null;
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318 | this._contextPromise = new Promise(fulfill => {
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319 | this._contextResolveCallback = fulfill;
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320 | });
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321 | }
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322 | }
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323 |
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324 | |
325 |
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326 |
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327 | executionContext() {
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328 | return this._contextPromise;
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329 | }
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330 |
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331 | |
332 |
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333 |
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334 |
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335 |
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336 | evaluateHandle(pageFunction, ...args) {return (fn => {
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337 | const gen = fn.call(this);
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338 | return new Promise((resolve, reject) => {
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339 | function step(key, arg) {
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340 | let info, value;
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341 | try {
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342 | info = gen[key](arg);
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343 | value = info.value;
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344 | } catch (error) {
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345 | reject(error);
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346 | return;
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347 | }
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348 | if (info.done) {
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349 | resolve(value);
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350 | } else {
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351 | return Promise.resolve(value).then(
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352 | value => {
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353 | step('next', value);
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354 | },
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355 | err => {
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356 | step('throw', err);
|
357 | });
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358 | }
|
359 | }
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360 | return step('next');
|
361 | });
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362 | })(function*(){
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363 | const context = (yield this._contextPromise);
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364 | return context.evaluateHandle(pageFunction, ...args);
|
365 | });}
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366 |
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367 | |
368 |
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369 |
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370 |
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371 |
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372 | evaluate(pageFunction, ...args) {return (fn => {
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373 | const gen = fn.call(this);
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374 | return new Promise((resolve, reject) => {
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375 | function step(key, arg) {
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376 | let info, value;
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377 | try {
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378 | info = gen[key](arg);
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379 | value = info.value;
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380 | } catch (error) {
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381 | reject(error);
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382 | return;
|
383 | }
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384 | if (info.done) {
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385 | resolve(value);
|
386 | } else {
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387 | return Promise.resolve(value).then(
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388 | value => {
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389 | step('next', value);
|
390 | },
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391 | err => {
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392 | step('throw', err);
|
393 | });
|
394 | }
|
395 | }
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396 | return step('next');
|
397 | });
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398 | })(function*(){
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399 | const context = (yield this._contextPromise);
|
400 | return context.evaluate(pageFunction, ...args);
|
401 | });}
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402 |
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403 | |
404 |
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405 |
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406 |
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407 | $(selector) {return (fn => {
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408 | const gen = fn.call(this);
|
409 | return new Promise((resolve, reject) => {
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410 | function step(key, arg) {
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411 | let info, value;
|
412 | try {
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413 | info = gen[key](arg);
|
414 | value = info.value;
|
415 | } catch (error) {
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416 | reject(error);
|
417 | return;
|
418 | }
|
419 | if (info.done) {
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420 | resolve(value);
|
421 | } else {
|
422 | return Promise.resolve(value).then(
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423 | value => {
|
424 | step('next', value);
|
425 | },
|
426 | err => {
|
427 | step('throw', err);
|
428 | });
|
429 | }
|
430 | }
|
431 | return step('next');
|
432 | });
|
433 | })(function*(){
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434 | const document = (yield this._document());
|
435 | const value = (yield document.$(selector));
|
436 | return value;
|
437 | });}
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438 |
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439 | |
440 |
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441 |
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442 | _document() {return (fn => {
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443 | const gen = fn.call(this);
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444 | return new Promise((resolve, reject) => {
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445 | function step(key, arg) {
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446 | let info, value;
|
447 | try {
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448 | info = gen[key](arg);
|
449 | value = info.value;
|
450 | } catch (error) {
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451 | reject(error);
|
452 | return;
|
453 | }
|
454 | if (info.done) {
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455 | resolve(value);
|
456 | } else {
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457 | return Promise.resolve(value).then(
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458 | value => {
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459 | step('next', value);
|
460 | },
|
461 | err => {
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462 | step('throw', err);
|
463 | });
|
464 | }
|
465 | }
|
466 | return step('next');
|
467 | });
|
468 | })(function*(){
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469 | if (this._documentPromise)
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470 | return this._documentPromise;
|
471 | this._documentPromise = this._contextPromise.then( context => {return (fn => {
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472 | const gen = fn.call(this);
|
473 | return new Promise((resolve, reject) => {
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474 | function step(key, arg) {
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475 | let info, value;
|
476 | try {
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477 | info = gen[key](arg);
|
478 | value = info.value;
|
479 | } catch (error) {
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480 | reject(error);
|
481 | return;
|
482 | }
|
483 | if (info.done) {
|
484 | resolve(value);
|
485 | } else {
|
486 | return Promise.resolve(value).then(
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487 | value => {
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488 | step('next', value);
|
489 | },
|
490 | err => {
|
491 | step('throw', err);
|
492 | });
|
493 | }
|
494 | }
|
495 | return step('next');
|
496 | });
|
497 | })(function*(){
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498 | const document = (yield context.evaluateHandle('document'));
|
499 | return document.asElement();
|
500 | });});
|
501 | return this._documentPromise;
|
502 | });}
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503 |
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504 | |
505 |
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506 |
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507 |
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508 | $x(expression) {return (fn => {
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509 | const gen = fn.call(this);
|
510 | return new Promise((resolve, reject) => {
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511 | function step(key, arg) {
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512 | let info, value;
|
513 | try {
|
514 | info = gen[key](arg);
|
515 | value = info.value;
|
516 | } catch (error) {
|
517 | reject(error);
|
518 | return;
|
519 | }
|
520 | if (info.done) {
|
521 | resolve(value);
|
522 | } else {
|
523 | return Promise.resolve(value).then(
|
524 | value => {
|
525 | step('next', value);
|
526 | },
|
527 | err => {
|
528 | step('throw', err);
|
529 | });
|
530 | }
|
531 | }
|
532 | return step('next');
|
533 | });
|
534 | })(function*(){
|
535 | const document = (yield this._document());
|
536 | const value = (yield document.$x(expression));
|
537 | return value;
|
538 | });}
|
539 |
|
540 | |
541 |
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542 |
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543 |
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544 |
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545 |
|
546 | $eval(selector, pageFunction, ...args) {return (fn => {
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547 | const gen = fn.call(this);
|
548 | return new Promise((resolve, reject) => {
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549 | function step(key, arg) {
|
550 | let info, value;
|
551 | try {
|
552 | info = gen[key](arg);
|
553 | value = info.value;
|
554 | } catch (error) {
|
555 | reject(error);
|
556 | return;
|
557 | }
|
558 | if (info.done) {
|
559 | resolve(value);
|
560 | } else {
|
561 | return Promise.resolve(value).then(
|
562 | value => {
|
563 | step('next', value);
|
564 | },
|
565 | err => {
|
566 | step('throw', err);
|
567 | });
|
568 | }
|
569 | }
|
570 | return step('next');
|
571 | });
|
572 | })(function*(){
|
573 | const document = (yield this._document());
|
574 | return document.$eval(selector, pageFunction, ...args);
|
575 | });}
|
576 |
|
577 | |
578 |
|
579 |
|
580 |
|
581 |
|
582 |
|
583 | $$eval(selector, pageFunction, ...args) {return (fn => {
|
584 | const gen = fn.call(this);
|
585 | return new Promise((resolve, reject) => {
|
586 | function step(key, arg) {
|
587 | let info, value;
|
588 | try {
|
589 | info = gen[key](arg);
|
590 | value = info.value;
|
591 | } catch (error) {
|
592 | reject(error);
|
593 | return;
|
594 | }
|
595 | if (info.done) {
|
596 | resolve(value);
|
597 | } else {
|
598 | return Promise.resolve(value).then(
|
599 | value => {
|
600 | step('next', value);
|
601 | },
|
602 | err => {
|
603 | step('throw', err);
|
604 | });
|
605 | }
|
606 | }
|
607 | return step('next');
|
608 | });
|
609 | })(function*(){
|
610 | const document = (yield this._document());
|
611 | const value = (yield document.$$eval(selector, pageFunction, ...args));
|
612 | return value;
|
613 | });}
|
614 |
|
615 | |
616 |
|
617 |
|
618 |
|
619 | $$(selector) {return (fn => {
|
620 | const gen = fn.call(this);
|
621 | return new Promise((resolve, reject) => {
|
622 | function step(key, arg) {
|
623 | let info, value;
|
624 | try {
|
625 | info = gen[key](arg);
|
626 | value = info.value;
|
627 | } catch (error) {
|
628 | reject(error);
|
629 | return;
|
630 | }
|
631 | if (info.done) {
|
632 | resolve(value);
|
633 | } else {
|
634 | return Promise.resolve(value).then(
|
635 | value => {
|
636 | step('next', value);
|
637 | },
|
638 | err => {
|
639 | step('throw', err);
|
640 | });
|
641 | }
|
642 | }
|
643 | return step('next');
|
644 | });
|
645 | })(function*(){
|
646 | const document = (yield this._document());
|
647 | const value = (yield document.$$(selector));
|
648 | return value;
|
649 | });}
|
650 |
|
651 | |
652 |
|
653 |
|
654 | content() {return (fn => {
|
655 | const gen = fn.call(this);
|
656 | return new Promise((resolve, reject) => {
|
657 | function step(key, arg) {
|
658 | let info, value;
|
659 | try {
|
660 | info = gen[key](arg);
|
661 | value = info.value;
|
662 | } catch (error) {
|
663 | reject(error);
|
664 | return;
|
665 | }
|
666 | if (info.done) {
|
667 | resolve(value);
|
668 | } else {
|
669 | return Promise.resolve(value).then(
|
670 | value => {
|
671 | step('next', value);
|
672 | },
|
673 | err => {
|
674 | step('throw', err);
|
675 | });
|
676 | }
|
677 | }
|
678 | return step('next');
|
679 | });
|
680 | })(function*(){
|
681 | return (yield this.evaluate(() => {
|
682 | let retVal = '';
|
683 | if (document.doctype)
|
684 | retVal = new XMLSerializer().serializeToString(document.doctype);
|
685 | if (document.documentElement)
|
686 | retVal += document.documentElement.outerHTML;
|
687 | return retVal;
|
688 | }));
|
689 | });}
|
690 |
|
691 | |
692 |
|
693 |
|
694 | setContent(html) {return (fn => {
|
695 | const gen = fn.call(this);
|
696 | return new Promise((resolve, reject) => {
|
697 | function step(key, arg) {
|
698 | let info, value;
|
699 | try {
|
700 | info = gen[key](arg);
|
701 | value = info.value;
|
702 | } catch (error) {
|
703 | reject(error);
|
704 | return;
|
705 | }
|
706 | if (info.done) {
|
707 | resolve(value);
|
708 | } else {
|
709 | return Promise.resolve(value).then(
|
710 | value => {
|
711 | step('next', value);
|
712 | },
|
713 | err => {
|
714 | step('throw', err);
|
715 | });
|
716 | }
|
717 | }
|
718 | return step('next');
|
719 | });
|
720 | })(function*(){
|
721 | (yield this.evaluate(html => {
|
722 | document.open();
|
723 | document.write(html);
|
724 | document.close();
|
725 | }, html));
|
726 | });}
|
727 |
|
728 | |
729 |
|
730 |
|
731 | name() {
|
732 | return this._name || '';
|
733 | }
|
734 |
|
735 | |
736 |
|
737 |
|
738 | url() {
|
739 | return this._url;
|
740 | }
|
741 |
|
742 | |
743 |
|
744 |
|
745 | parentFrame() {
|
746 | return this._parentFrame;
|
747 | }
|
748 |
|
749 | |
750 |
|
751 |
|
752 | childFrames() {
|
753 | return Array.from(this._childFrames);
|
754 | }
|
755 |
|
756 | |
757 |
|
758 |
|
759 | isDetached() {
|
760 | return this._detached;
|
761 | }
|
762 |
|
763 | |
764 |
|
765 |
|
766 |
|
767 | addScriptTag(options) {return (fn => {
|
768 | const gen = fn.call(this);
|
769 | return new Promise((resolve, reject) => {
|
770 | function step(key, arg) {
|
771 | let info, value;
|
772 | try {
|
773 | info = gen[key](arg);
|
774 | value = info.value;
|
775 | } catch (error) {
|
776 | reject(error);
|
777 | return;
|
778 | }
|
779 | if (info.done) {
|
780 | resolve(value);
|
781 | } else {
|
782 | return Promise.resolve(value).then(
|
783 | value => {
|
784 | step('next', value);
|
785 | },
|
786 | err => {
|
787 | step('throw', err);
|
788 | });
|
789 | }
|
790 | }
|
791 | return step('next');
|
792 | });
|
793 | })(function*(){
|
794 | if (typeof options.url === 'string') {
|
795 | const url = options.url;
|
796 | try {
|
797 | const context = (yield this._contextPromise);
|
798 | return ((yield context.evaluateHandle(addScriptUrl, url, options.type))).asElement();
|
799 | } catch (error) {
|
800 | throw new Error(`Loading script from ${url} failed`);
|
801 | }
|
802 | }
|
803 |
|
804 | if (typeof options.path === 'string') {
|
805 | let contents = (yield readFileAsync(options.path, 'utf8'));
|
806 | contents += '//# sourceURL=' + options.path.replace(/\n/g, '');
|
807 | const context = (yield this._contextPromise);
|
808 | return ((yield context.evaluateHandle(addScriptContent, contents, options.type))).asElement();
|
809 | }
|
810 |
|
811 | if (typeof options.content === 'string') {
|
812 | const context = (yield this._contextPromise);
|
813 | return ((yield context.evaluateHandle(addScriptContent, options.content, options.type))).asElement();
|
814 | }
|
815 |
|
816 | throw new Error('Provide an object with a `url`, `path` or `content` property');
|
817 |
|
818 | |
819 |
|
820 |
|
821 |
|
822 |
|
823 | function addScriptUrl(url, type) {return (fn => {
|
824 | const gen = fn.call(this);
|
825 | return new Promise((resolve, reject) => {
|
826 | function step(key, arg) {
|
827 | let info, value;
|
828 | try {
|
829 | info = gen[key](arg);
|
830 | value = info.value;
|
831 | } catch (error) {
|
832 | reject(error);
|
833 | return;
|
834 | }
|
835 | if (info.done) {
|
836 | resolve(value);
|
837 | } else {
|
838 | return Promise.resolve(value).then(
|
839 | value => {
|
840 | step('next', value);
|
841 | },
|
842 | err => {
|
843 | step('throw', err);
|
844 | });
|
845 | }
|
846 | }
|
847 | return step('next');
|
848 | });
|
849 | })(function*(){
|
850 | const script = document.createElement('script');
|
851 | script.src = url;
|
852 | if (type)
|
853 | script.type = type;
|
854 | const promise = new Promise((res, rej) => {
|
855 | script.onload = res;
|
856 | script.onerror = rej;
|
857 | });
|
858 | document.head.appendChild(script);
|
859 | (yield promise);
|
860 | return script;
|
861 | });}
|
862 |
|
863 | |
864 |
|
865 |
|
866 |
|
867 |
|
868 | function addScriptContent(content, type = 'text/javascript') {
|
869 | const script = document.createElement('script');
|
870 | script.type = type;
|
871 | script.text = content;
|
872 | let error = null;
|
873 | script.onerror = e => error = e;
|
874 | document.head.appendChild(script);
|
875 | if (error)
|
876 | throw error;
|
877 | return script;
|
878 | }
|
879 | });}
|
880 |
|
881 | |
882 |
|
883 |
|
884 |
|
885 | addStyleTag(options) {return (fn => {
|
886 | const gen = fn.call(this);
|
887 | return new Promise((resolve, reject) => {
|
888 | function step(key, arg) {
|
889 | let info, value;
|
890 | try {
|
891 | info = gen[key](arg);
|
892 | value = info.value;
|
893 | } catch (error) {
|
894 | reject(error);
|
895 | return;
|
896 | }
|
897 | if (info.done) {
|
898 | resolve(value);
|
899 | } else {
|
900 | return Promise.resolve(value).then(
|
901 | value => {
|
902 | step('next', value);
|
903 | },
|
904 | err => {
|
905 | step('throw', err);
|
906 | });
|
907 | }
|
908 | }
|
909 | return step('next');
|
910 | });
|
911 | })(function*(){
|
912 | if (typeof options.url === 'string') {
|
913 | const url = options.url;
|
914 | try {
|
915 | const context = (yield this._contextPromise);
|
916 | return ((yield context.evaluateHandle(addStyleUrl, url))).asElement();
|
917 | } catch (error) {
|
918 | throw new Error(`Loading style from ${url} failed`);
|
919 | }
|
920 | }
|
921 |
|
922 | if (typeof options.path === 'string') {
|
923 | let contents = (yield readFileAsync(options.path, 'utf8'));
|
924 | contents += '/*# sourceURL=' + options.path.replace(/\n/g, '') + '*/';
|
925 | const context = (yield this._contextPromise);
|
926 | return ((yield context.evaluateHandle(addStyleContent, contents))).asElement();
|
927 | }
|
928 |
|
929 | if (typeof options.content === 'string') {
|
930 | const context = (yield this._contextPromise);
|
931 | return ((yield context.evaluateHandle(addStyleContent, options.content))).asElement();
|
932 | }
|
933 |
|
934 | throw new Error('Provide an object with a `url`, `path` or `content` property');
|
935 |
|
936 | |
937 |
|
938 |
|
939 |
|
940 | function addStyleUrl(url) {return (fn => {
|
941 | const gen = fn.call(this);
|
942 | return new Promise((resolve, reject) => {
|
943 | function step(key, arg) {
|
944 | let info, value;
|
945 | try {
|
946 | info = gen[key](arg);
|
947 | value = info.value;
|
948 | } catch (error) {
|
949 | reject(error);
|
950 | return;
|
951 | }
|
952 | if (info.done) {
|
953 | resolve(value);
|
954 | } else {
|
955 | return Promise.resolve(value).then(
|
956 | value => {
|
957 | step('next', value);
|
958 | },
|
959 | err => {
|
960 | step('throw', err);
|
961 | });
|
962 | }
|
963 | }
|
964 | return step('next');
|
965 | });
|
966 | })(function*(){
|
967 | const link = document.createElement('link');
|
968 | link.rel = 'stylesheet';
|
969 | link.href = url;
|
970 | const promise = new Promise((res, rej) => {
|
971 | link.onload = res;
|
972 | link.onerror = rej;
|
973 | });
|
974 | document.head.appendChild(link);
|
975 | (yield promise);
|
976 | return link;
|
977 | });}
|
978 |
|
979 | |
980 |
|
981 |
|
982 |
|
983 | function addStyleContent(content) {return (fn => {
|
984 | const gen = fn.call(this);
|
985 | return new Promise((resolve, reject) => {
|
986 | function step(key, arg) {
|
987 | let info, value;
|
988 | try {
|
989 | info = gen[key](arg);
|
990 | value = info.value;
|
991 | } catch (error) {
|
992 | reject(error);
|
993 | return;
|
994 | }
|
995 | if (info.done) {
|
996 | resolve(value);
|
997 | } else {
|
998 | return Promise.resolve(value).then(
|
999 | value => {
|
1000 | step('next', value);
|
1001 | },
|
1002 | err => {
|
1003 | step('throw', err);
|
1004 | });
|
1005 | }
|
1006 | }
|
1007 | return step('next');
|
1008 | });
|
1009 | })(function*(){
|
1010 | const style = document.createElement('style');
|
1011 | style.type = 'text/css';
|
1012 | style.appendChild(document.createTextNode(content));
|
1013 | const promise = new Promise((res, rej) => {
|
1014 | style.onload = res;
|
1015 | style.onerror = rej;
|
1016 | });
|
1017 | document.head.appendChild(style);
|
1018 | (yield promise);
|
1019 | return style;
|
1020 | });}
|
1021 | });}
|
1022 |
|
1023 | |
1024 |
|
1025 |
|
1026 |
|
1027 | click(selector, options = {}) {return (fn => {
|
1028 | const gen = fn.call(this);
|
1029 | return new Promise((resolve, reject) => {
|
1030 | function step(key, arg) {
|
1031 | let info, value;
|
1032 | try {
|
1033 | info = gen[key](arg);
|
1034 | value = info.value;
|
1035 | } catch (error) {
|
1036 | reject(error);
|
1037 | return;
|
1038 | }
|
1039 | if (info.done) {
|
1040 | resolve(value);
|
1041 | } else {
|
1042 | return Promise.resolve(value).then(
|
1043 | value => {
|
1044 | step('next', value);
|
1045 | },
|
1046 | err => {
|
1047 | step('throw', err);
|
1048 | });
|
1049 | }
|
1050 | }
|
1051 | return step('next');
|
1052 | });
|
1053 | })(function*(){
|
1054 | const handle = (yield this.$(selector));
|
1055 | assert(handle, 'No node found for selector: ' + selector);
|
1056 | (yield handle.click(options));
|
1057 | (yield handle.dispose());
|
1058 | });}
|
1059 |
|
1060 | |
1061 |
|
1062 |
|
1063 | focus(selector) {return (fn => {
|
1064 | const gen = fn.call(this);
|
1065 | return new Promise((resolve, reject) => {
|
1066 | function step(key, arg) {
|
1067 | let info, value;
|
1068 | try {
|
1069 | info = gen[key](arg);
|
1070 | value = info.value;
|
1071 | } catch (error) {
|
1072 | reject(error);
|
1073 | return;
|
1074 | }
|
1075 | if (info.done) {
|
1076 | resolve(value);
|
1077 | } else {
|
1078 | return Promise.resolve(value).then(
|
1079 | value => {
|
1080 | step('next', value);
|
1081 | },
|
1082 | err => {
|
1083 | step('throw', err);
|
1084 | });
|
1085 | }
|
1086 | }
|
1087 | return step('next');
|
1088 | });
|
1089 | })(function*(){
|
1090 | const handle = (yield this.$(selector));
|
1091 | assert(handle, 'No node found for selector: ' + selector);
|
1092 | (yield handle.focus());
|
1093 | (yield handle.dispose());
|
1094 | });}
|
1095 |
|
1096 | |
1097 |
|
1098 |
|
1099 | hover(selector) {return (fn => {
|
1100 | const gen = fn.call(this);
|
1101 | return new Promise((resolve, reject) => {
|
1102 | function step(key, arg) {
|
1103 | let info, value;
|
1104 | try {
|
1105 | info = gen[key](arg);
|
1106 | value = info.value;
|
1107 | } catch (error) {
|
1108 | reject(error);
|
1109 | return;
|
1110 | }
|
1111 | if (info.done) {
|
1112 | resolve(value);
|
1113 | } else {
|
1114 | return Promise.resolve(value).then(
|
1115 | value => {
|
1116 | step('next', value);
|
1117 | },
|
1118 | err => {
|
1119 | step('throw', err);
|
1120 | });
|
1121 | }
|
1122 | }
|
1123 | return step('next');
|
1124 | });
|
1125 | })(function*(){
|
1126 | const handle = (yield this.$(selector));
|
1127 | assert(handle, 'No node found for selector: ' + selector);
|
1128 | (yield handle.hover());
|
1129 | (yield handle.dispose());
|
1130 | });}
|
1131 |
|
1132 | |
1133 |
|
1134 |
|
1135 |
|
1136 |
|
1137 | select(selector, ...values){
|
1138 | for (const value of values)
|
1139 | assert(helper.isString(value), 'Values must be strings. Found value "' + value + '" of type "' + (typeof value) + '"');
|
1140 | return this.$eval(selector, (element, values) => {
|
1141 | if (element.nodeName.toLowerCase() !== 'select')
|
1142 | throw new Error('Element is not a <select> element.');
|
1143 |
|
1144 | const options = Array.from(element.options);
|
1145 | element.value = undefined;
|
1146 | for (const option of options) {
|
1147 | option.selected = values.includes(option.value);
|
1148 | if (option.selected && !element.multiple)
|
1149 | break;
|
1150 | }
|
1151 | element.dispatchEvent(new Event('input', { 'bubbles': true }));
|
1152 | element.dispatchEvent(new Event('change', { 'bubbles': true }));
|
1153 | return options.filter(option => option.selected).map(option => option.value);
|
1154 | }, values);
|
1155 | }
|
1156 |
|
1157 | |
1158 |
|
1159 |
|
1160 | tap(selector) {return (fn => {
|
1161 | const gen = fn.call(this);
|
1162 | return new Promise((resolve, reject) => {
|
1163 | function step(key, arg) {
|
1164 | let info, value;
|
1165 | try {
|
1166 | info = gen[key](arg);
|
1167 | value = info.value;
|
1168 | } catch (error) {
|
1169 | reject(error);
|
1170 | return;
|
1171 | }
|
1172 | if (info.done) {
|
1173 | resolve(value);
|
1174 | } else {
|
1175 | return Promise.resolve(value).then(
|
1176 | value => {
|
1177 | step('next', value);
|
1178 | },
|
1179 | err => {
|
1180 | step('throw', err);
|
1181 | });
|
1182 | }
|
1183 | }
|
1184 | return step('next');
|
1185 | });
|
1186 | })(function*(){
|
1187 | const handle = (yield this.$(selector));
|
1188 | assert(handle, 'No node found for selector: ' + selector);
|
1189 | (yield handle.tap());
|
1190 | (yield handle.dispose());
|
1191 | });}
|
1192 |
|
1193 | |
1194 |
|
1195 |
|
1196 |
|
1197 |
|
1198 | type(selector, text, options) {return (fn => {
|
1199 | const gen = fn.call(this);
|
1200 | return new Promise((resolve, reject) => {
|
1201 | function step(key, arg) {
|
1202 | let info, value;
|
1203 | try {
|
1204 | info = gen[key](arg);
|
1205 | value = info.value;
|
1206 | } catch (error) {
|
1207 | reject(error);
|
1208 | return;
|
1209 | }
|
1210 | if (info.done) {
|
1211 | resolve(value);
|
1212 | } else {
|
1213 | return Promise.resolve(value).then(
|
1214 | value => {
|
1215 | step('next', value);
|
1216 | },
|
1217 | err => {
|
1218 | step('throw', err);
|
1219 | });
|
1220 | }
|
1221 | }
|
1222 | return step('next');
|
1223 | });
|
1224 | })(function*(){
|
1225 | const handle = (yield this.$(selector));
|
1226 | assert(handle, 'No node found for selector: ' + selector);
|
1227 | (yield handle.type(text, options));
|
1228 | (yield handle.dispose());
|
1229 | });}
|
1230 |
|
1231 | |
1232 |
|
1233 |
|
1234 |
|
1235 |
|
1236 |
|
1237 | waitFor(selectorOrFunctionOrTimeout, options = {}, ...args) {
|
1238 | const xPathPattern = '//';
|
1239 |
|
1240 | if (helper.isString(selectorOrFunctionOrTimeout)) {
|
1241 | const string = (selectorOrFunctionOrTimeout);
|
1242 | if (string.startsWith(xPathPattern))
|
1243 | return this.waitForXPath(string, options);
|
1244 | return this.waitForSelector(string, options);
|
1245 | }
|
1246 | if (helper.isNumber(selectorOrFunctionOrTimeout))
|
1247 | return new Promise(fulfill => setTimeout(fulfill, selectorOrFunctionOrTimeout));
|
1248 | if (typeof selectorOrFunctionOrTimeout === 'function')
|
1249 | return this.waitForFunction(selectorOrFunctionOrTimeout, options, ...args);
|
1250 | return Promise.reject(new Error('Unsupported target type: ' + (typeof selectorOrFunctionOrTimeout)));
|
1251 | }
|
1252 |
|
1253 | |
1254 |
|
1255 |
|
1256 |
|
1257 |
|
1258 | waitForSelector(selector, options = {}) {
|
1259 | return this._waitForSelectorOrXPath(selector, false, options);
|
1260 | }
|
1261 |
|
1262 | |
1263 |
|
1264 |
|
1265 |
|
1266 |
|
1267 | waitForXPath(xpath, options = {}) {
|
1268 | return this._waitForSelectorOrXPath(xpath, true, options);
|
1269 | }
|
1270 |
|
1271 | |
1272 |
|
1273 |
|
1274 |
|
1275 |
|
1276 | waitForFunction(pageFunction, options = {}, ...args) {
|
1277 | const timeout = helper.isNumber(options.timeout) ? options.timeout : 30000;
|
1278 | const polling = options.polling || 'raf';
|
1279 | return new WaitTask(this, pageFunction, 'function', polling, timeout, ...args).promise;
|
1280 | }
|
1281 |
|
1282 | |
1283 |
|
1284 |
|
1285 | title() {return (fn => {
|
1286 | const gen = fn.call(this);
|
1287 | return new Promise((resolve, reject) => {
|
1288 | function step(key, arg) {
|
1289 | let info, value;
|
1290 | try {
|
1291 | info = gen[key](arg);
|
1292 | value = info.value;
|
1293 | } catch (error) {
|
1294 | reject(error);
|
1295 | return;
|
1296 | }
|
1297 | if (info.done) {
|
1298 | resolve(value);
|
1299 | } else {
|
1300 | return Promise.resolve(value).then(
|
1301 | value => {
|
1302 | step('next', value);
|
1303 | },
|
1304 | err => {
|
1305 | step('throw', err);
|
1306 | });
|
1307 | }
|
1308 | }
|
1309 | return step('next');
|
1310 | });
|
1311 | })(function*(){
|
1312 | return this.evaluate(() => document.title);
|
1313 | });}
|
1314 |
|
1315 | |
1316 |
|
1317 |
|
1318 |
|
1319 |
|
1320 |
|
1321 | _waitForSelectorOrXPath(selectorOrXPath, isXPath, options = {}) {
|
1322 | const waitForVisible = !!options.visible;
|
1323 | const waitForHidden = !!options.hidden;
|
1324 | const polling = waitForVisible || waitForHidden ? 'raf' : 'mutation';
|
1325 | const timeout = helper.isNumber(options.timeout) ? options.timeout : 30000;
|
1326 | const title = `${isXPath ? 'XPath' : 'selector'} "${selectorOrXPath}"${waitForHidden ? ' to be hidden' : ''}`;
|
1327 | return new WaitTask(this, predicate, title, polling, timeout, selectorOrXPath, isXPath, waitForVisible, waitForHidden).promise;
|
1328 |
|
1329 | |
1330 |
|
1331 |
|
1332 |
|
1333 |
|
1334 |
|
1335 |
|
1336 | function predicate(selectorOrXPath, isXPath, waitForVisible, waitForHidden) {
|
1337 | const node = isXPath
|
1338 | ? document.evaluate(selectorOrXPath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue
|
1339 | : document.querySelector(selectorOrXPath);
|
1340 | if (!node)
|
1341 | return waitForHidden;
|
1342 | if (!waitForVisible && !waitForHidden)
|
1343 | return node;
|
1344 | const element = (node.nodeType === Node.TEXT_NODE ? node.parentElement : node);
|
1345 |
|
1346 | const style = window.getComputedStyle(element);
|
1347 | const isVisible = style && style.visibility !== 'hidden' && hasVisibleBoundingBox();
|
1348 | const success = (waitForVisible === isVisible || waitForHidden === !isVisible);
|
1349 | return success ? node : null;
|
1350 |
|
1351 | |
1352 |
|
1353 |
|
1354 | function hasVisibleBoundingBox() {
|
1355 | const rect = element.getBoundingClientRect();
|
1356 | return !!(rect.top || rect.bottom || rect.width || rect.height);
|
1357 | }
|
1358 | }
|
1359 | }
|
1360 |
|
1361 | |
1362 |
|
1363 |
|
1364 | _navigated(framePayload) {
|
1365 | this._name = framePayload.name;
|
1366 |
|
1367 | this._navigationURL = framePayload.url;
|
1368 | this._url = framePayload.url;
|
1369 | }
|
1370 |
|
1371 | |
1372 |
|
1373 |
|
1374 | _navigatedWithinDocument(url) {
|
1375 | this._url = url;
|
1376 | }
|
1377 |
|
1378 | |
1379 |
|
1380 |
|
1381 |
|
1382 | _onLifecycleEvent(loaderId, name) {
|
1383 | if (name === 'init') {
|
1384 | this._loaderId = loaderId;
|
1385 | this._lifecycleEvents.clear();
|
1386 | }
|
1387 | this._lifecycleEvents.add(name);
|
1388 | }
|
1389 |
|
1390 | _onLoadingStopped() {
|
1391 | this._lifecycleEvents.add('DOMContentLoaded');
|
1392 | this._lifecycleEvents.add('load');
|
1393 | }
|
1394 |
|
1395 | _detach() {
|
1396 | for (const waitTask of this._waitTasks)
|
1397 | waitTask.terminate(new Error('waitForFunction failed: frame got detached.'));
|
1398 | this._detached = true;
|
1399 | if (this._parentFrame)
|
1400 | this._parentFrame._childFrames.delete(this);
|
1401 | this._parentFrame = null;
|
1402 | }
|
1403 | }
|
1404 | helper.tracePublicAPI(Frame);
|
1405 |
|
1406 | class WaitTask {
|
1407 | |
1408 |
|
1409 |
|
1410 |
|
1411 |
|
1412 |
|
1413 |
|
1414 | constructor(frame, predicateBody, title, polling, timeout, ...args) {
|
1415 | if (helper.isString(polling))
|
1416 | assert(polling === 'raf' || polling === 'mutation', 'Unknown polling option: ' + polling);
|
1417 | else if (helper.isNumber(polling))
|
1418 | assert(polling > 0, 'Cannot poll with non-positive interval: ' + polling);
|
1419 | else
|
1420 | throw new Error('Unknown polling options: ' + polling);
|
1421 |
|
1422 | this._frame = frame;
|
1423 | this._polling = polling;
|
1424 | this._timeout = timeout;
|
1425 | this._predicateBody = helper.isString(predicateBody) ? 'return ' + predicateBody : 'return (' + predicateBody + ')(...args)';
|
1426 | this._args = args;
|
1427 | this._runCount = 0;
|
1428 | frame._waitTasks.add(this);
|
1429 | this.promise = new Promise((resolve, reject) => {
|
1430 | this._resolve = resolve;
|
1431 | this._reject = reject;
|
1432 | });
|
1433 |
|
1434 |
|
1435 | if (timeout) {
|
1436 | const timeoutError = new TimeoutError(`waiting for ${title} failed: timeout ${timeout}ms exceeded`);
|
1437 | this._timeoutTimer = setTimeout(() => this.terminate(timeoutError), timeout);
|
1438 | }
|
1439 | this.rerun();
|
1440 | }
|
1441 |
|
1442 | |
1443 |
|
1444 |
|
1445 | terminate(error) {
|
1446 | this._terminated = true;
|
1447 | this._reject(error);
|
1448 | this._cleanup();
|
1449 | }
|
1450 |
|
1451 | rerun() {return (fn => {
|
1452 | const gen = fn.call(this);
|
1453 | return new Promise((resolve, reject) => {
|
1454 | function step(key, arg) {
|
1455 | let info, value;
|
1456 | try {
|
1457 | info = gen[key](arg);
|
1458 | value = info.value;
|
1459 | } catch (error) {
|
1460 | reject(error);
|
1461 | return;
|
1462 | }
|
1463 | if (info.done) {
|
1464 | resolve(value);
|
1465 | } else {
|
1466 | return Promise.resolve(value).then(
|
1467 | value => {
|
1468 | step('next', value);
|
1469 | },
|
1470 | err => {
|
1471 | step('throw', err);
|
1472 | });
|
1473 | }
|
1474 | }
|
1475 | return step('next');
|
1476 | });
|
1477 | })(function*(){
|
1478 | const runCount = ++this._runCount;
|
1479 |
|
1480 | let success = null;
|
1481 | let error = null;
|
1482 | try {
|
1483 | success = (yield ((yield this._frame.executionContext())).evaluateHandle(waitForPredicatePageFunction, this._predicateBody, this._polling, this._timeout, ...this._args));
|
1484 | } catch (e) {
|
1485 | error = e;
|
1486 | }
|
1487 |
|
1488 | if (this._terminated || runCount !== this._runCount) {
|
1489 | if (success)
|
1490 | (yield success.dispose());
|
1491 | return;
|
1492 | }
|
1493 |
|
1494 |
|
1495 |
|
1496 |
|
1497 | if (!error && (yield this._frame.evaluate(s => !s, success).catch(e => true))) {
|
1498 | (yield success.dispose());
|
1499 | return;
|
1500 | }
|
1501 |
|
1502 |
|
1503 |
|
1504 | if (error && error.message.includes('Execution context was destroyed'))
|
1505 | return;
|
1506 |
|
1507 |
|
1508 |
|
1509 | if (error && error.message.includes('Cannot find context with specified id'))
|
1510 | return;
|
1511 |
|
1512 | if (error)
|
1513 | this._reject(error);
|
1514 | else
|
1515 | this._resolve(success);
|
1516 |
|
1517 | this._cleanup();
|
1518 | });}
|
1519 |
|
1520 | _cleanup() {
|
1521 | clearTimeout(this._timeoutTimer);
|
1522 | this._frame._waitTasks.delete(this);
|
1523 | this._runningTask = null;
|
1524 | }
|
1525 | }
|
1526 |
|
1527 |
|
1528 |
|
1529 |
|
1530 |
|
1531 |
|
1532 |
|
1533 | function waitForPredicatePageFunction(predicateBody, polling, timeout, ...args) {return (fn => {
|
1534 | const gen = fn.call(this);
|
1535 | return new Promise((resolve, reject) => {
|
1536 | function step(key, arg) {
|
1537 | let info, value;
|
1538 | try {
|
1539 | info = gen[key](arg);
|
1540 | value = info.value;
|
1541 | } catch (error) {
|
1542 | reject(error);
|
1543 | return;
|
1544 | }
|
1545 | if (info.done) {
|
1546 | resolve(value);
|
1547 | } else {
|
1548 | return Promise.resolve(value).then(
|
1549 | value => {
|
1550 | step('next', value);
|
1551 | },
|
1552 | err => {
|
1553 | step('throw', err);
|
1554 | });
|
1555 | }
|
1556 | }
|
1557 | return step('next');
|
1558 | });
|
1559 | })(function*(){
|
1560 | const predicate = new Function('...args', predicateBody);
|
1561 | let timedOut = false;
|
1562 | if (timeout)
|
1563 | setTimeout(() => timedOut = true, timeout);
|
1564 | if (polling === 'raf')
|
1565 | return (yield pollRaf());
|
1566 | if (polling === 'mutation')
|
1567 | return (yield pollMutation());
|
1568 | if (typeof polling === 'number')
|
1569 | return (yield pollInterval(polling));
|
1570 |
|
1571 | |
1572 |
|
1573 |
|
1574 | function pollMutation() {
|
1575 | const success = predicate.apply(null, args);
|
1576 | if (success)
|
1577 | return Promise.resolve(success);
|
1578 |
|
1579 | let fulfill;
|
1580 | const result = new Promise(x => fulfill = x);
|
1581 | const observer = new MutationObserver(mutations => {
|
1582 | if (timedOut) {
|
1583 | observer.disconnect();
|
1584 | fulfill();
|
1585 | }
|
1586 | const success = predicate.apply(null, args);
|
1587 | if (success) {
|
1588 | observer.disconnect();
|
1589 | fulfill(success);
|
1590 | }
|
1591 | });
|
1592 | observer.observe(document, {
|
1593 | childList: true,
|
1594 | subtree: true,
|
1595 | attributes: true
|
1596 | });
|
1597 | return result;
|
1598 | }
|
1599 |
|
1600 | |
1601 |
|
1602 |
|
1603 | function pollRaf() {
|
1604 | let fulfill;
|
1605 | const result = new Promise(x => fulfill = x);
|
1606 | onRaf();
|
1607 | return result;
|
1608 |
|
1609 | function onRaf() {
|
1610 | if (timedOut) {
|
1611 | fulfill();
|
1612 | return;
|
1613 | }
|
1614 | const success = predicate.apply(null, args);
|
1615 | if (success)
|
1616 | fulfill(success);
|
1617 | else
|
1618 | requestAnimationFrame(onRaf);
|
1619 | }
|
1620 | }
|
1621 |
|
1622 | |
1623 |
|
1624 |
|
1625 |
|
1626 | function pollInterval(pollInterval) {
|
1627 | let fulfill;
|
1628 | const result = new Promise(x => fulfill = x);
|
1629 | onTimeout();
|
1630 | return result;
|
1631 |
|
1632 | function onTimeout() {
|
1633 | if (timedOut) {
|
1634 | fulfill();
|
1635 | return;
|
1636 | }
|
1637 | const success = predicate.apply(null, args);
|
1638 | if (success)
|
1639 | fulfill(success);
|
1640 | else
|
1641 | setTimeout(onTimeout, pollInterval);
|
1642 | }
|
1643 | }
|
1644 | });}
|
1645 |
|
1646 | module.exports = {FrameManager, Frame};
|