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11 | 'use strict';
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12 |
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13 | var DataTransfer = require("fbjs/lib/DataTransfer");
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14 |
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15 | var DraftModifier = require("./DraftModifier");
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16 |
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17 | var EditorState = require("./EditorState");
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18 |
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19 | var findAncestorOffsetKey = require("./findAncestorOffsetKey");
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20 |
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21 | var getCorrectDocumentFromNode = require("./getCorrectDocumentFromNode");
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22 |
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23 | var getTextContentFromFiles = require("./getTextContentFromFiles");
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24 |
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25 | var getUpdatedSelectionState = require("./getUpdatedSelectionState");
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26 |
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27 | var getWindowForNode = require("./getWindowForNode");
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28 |
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29 | var isEventHandled = require("./isEventHandled");
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30 |
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31 | var nullthrows = require("fbjs/lib/nullthrows");
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32 |
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33 |
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34 |
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35 |
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36 |
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37 | function getSelectionForEvent(event, editorState) {
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38 | var node = null;
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39 | var offset = null;
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40 | var eventTargetDocument = getCorrectDocumentFromNode(event.currentTarget);
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41 | |
42 |
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43 |
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44 |
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45 | if (typeof eventTargetDocument.caretRangeFromPoint === 'function') {
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46 | |
47 |
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48 |
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49 | var dropRange = eventTargetDocument.caretRangeFromPoint(event.x, event.y);
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50 | node = dropRange.startContainer;
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51 | offset = dropRange.startOffset;
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52 | } else if (event.rangeParent) {
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53 | node = event.rangeParent;
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54 | offset = event.rangeOffset;
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55 | } else {
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56 | return null;
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57 | }
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58 |
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59 | node = nullthrows(node);
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60 | offset = nullthrows(offset);
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61 | var offsetKey = nullthrows(findAncestorOffsetKey(node));
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62 | return getUpdatedSelectionState(editorState, offsetKey, offset, offsetKey, offset);
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63 | }
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64 |
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65 | var DraftEditorDragHandler = {
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66 | |
67 |
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68 |
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69 | onDragEnd: function onDragEnd(editor) {
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70 | editor.exitCurrentMode();
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71 | endDrag(editor);
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72 | },
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73 |
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74 | |
75 |
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76 |
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77 | onDrop: function onDrop(editor, e) {
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78 | var data = new DataTransfer(e.nativeEvent.dataTransfer);
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79 | var editorState = editor._latestEditorState;
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80 | var dropSelection = getSelectionForEvent(e.nativeEvent, editorState);
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81 | e.preventDefault();
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82 | editor._dragCount = 0;
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83 | editor.exitCurrentMode();
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84 |
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85 | if (dropSelection == null) {
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86 | return;
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87 | }
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88 |
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89 | var files = data.getFiles();
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90 |
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91 | if (files.length > 0) {
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92 | if (editor.props.handleDroppedFiles && isEventHandled(editor.props.handleDroppedFiles(dropSelection, files))) {
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93 | return;
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94 | }
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95 | |
96 |
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97 |
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98 |
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99 |
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100 | getTextContentFromFiles(files, function (fileText) {
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101 | fileText && editor.update(insertTextAtSelection(editorState, dropSelection, fileText));
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102 | });
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103 | return;
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104 | }
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105 |
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106 | var dragType = editor._internalDrag ? 'internal' : 'external';
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107 |
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108 | if (editor.props.handleDrop && isEventHandled(editor.props.handleDrop(dropSelection, data, dragType))) {
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109 | } else if (editor._internalDrag) {
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110 | editor.update(moveText(editorState, dropSelection));
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111 | } else {
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112 | editor.update(insertTextAtSelection(editorState, dropSelection, data.getText()));
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113 | }
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114 |
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115 | endDrag(editor);
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116 | }
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117 | };
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118 |
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119 | function endDrag(editor) {
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120 | editor._internalDrag = false;
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121 |
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122 |
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123 |
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124 |
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125 | var editorNode = editor.editorContainer;
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126 |
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127 | if (editorNode) {
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128 | var mouseUpEvent = new MouseEvent('mouseup', {
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129 | view: getWindowForNode(editorNode),
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130 | bubbles: true,
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131 | cancelable: true
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132 | });
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133 | editorNode.dispatchEvent(mouseUpEvent);
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134 | }
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135 | }
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136 |
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137 | function moveText(editorState, targetSelection) {
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138 | var newContentState = DraftModifier.moveText(editorState.getCurrentContent(), editorState.getSelection(), targetSelection);
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139 | return EditorState.push(editorState, newContentState, 'insert-fragment');
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140 | }
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141 |
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142 |
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143 |
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144 |
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145 |
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146 | function insertTextAtSelection(editorState, selection, text) {
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147 | var newContentState = DraftModifier.insertText(editorState.getCurrentContent(), selection, text, editorState.getCurrentInlineStyle());
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148 | return EditorState.push(editorState, newContentState, 'insert-fragment');
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149 | }
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150 |
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151 | module.exports = DraftEditorDragHandler; |
\ | No newline at end of file |