| 1 |
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| 2 |
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| 3 |
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| 4 | (function(mod) {
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| 5 | if (typeof exports == "object" && typeof module == "object")
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| 6 | mod(require("../../lib/codemirror"));
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| 7 | else if (typeof define == "function" && define.amd)
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| 8 | define(["../../lib/codemirror"], mod);
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| 9 | else
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| 10 | mod(CodeMirror);
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| 11 | })(function(CodeMirror) {
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| 12 | "use strict";
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| 13 |
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| 14 | CodeMirror.defineOption("selectionPointer", false, function(cm, val) {
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| 15 | var data = cm.state.selectionPointer;
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| 16 | if (data) {
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| 17 | CodeMirror.off(cm.getWrapperElement(), "mousemove", data.mousemove);
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| 18 | CodeMirror.off(cm.getWrapperElement(), "mouseout", data.mouseout);
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| 19 | CodeMirror.off(window, "scroll", data.windowScroll);
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| 20 | cm.off("cursorActivity", reset);
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| 21 | cm.off("scroll", reset);
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| 22 | cm.state.selectionPointer = null;
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| 23 | cm.display.lineDiv.style.cursor = "";
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| 24 | }
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| 25 | if (val) {
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| 26 | data = cm.state.selectionPointer = {
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| 27 | value: typeof val == "string" ? val : "default",
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| 28 | mousemove: function(event) { mousemove(cm, event); },
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| 29 | mouseout: function(event) { mouseout(cm, event); },
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| 30 | windowScroll: function() { reset(cm); },
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| 31 | rects: null,
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| 32 | mouseX: null, mouseY: null,
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| 33 | willUpdate: false
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| 34 | };
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| 35 | CodeMirror.on(cm.getWrapperElement(), "mousemove", data.mousemove);
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| 36 | CodeMirror.on(cm.getWrapperElement(), "mouseout", data.mouseout);
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| 37 | CodeMirror.on(window, "scroll", data.windowScroll);
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| 38 | cm.on("cursorActivity", reset);
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| 39 | cm.on("scroll", reset);
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| 40 | }
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| 41 | });
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| 42 |
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| 43 | function mousemove(cm, event) {
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| 44 | var data = cm.state.selectionPointer;
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| 45 | if (event.buttons == null ? event.which : event.buttons) {
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| 46 | data.mouseX = data.mouseY = null;
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| 47 | } else {
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| 48 | data.mouseX = event.clientX;
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| 49 | data.mouseY = event.clientY;
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| 50 | }
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| 51 | scheduleUpdate(cm);
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| 52 | }
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| 53 |
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| 54 | function mouseout(cm, event) {
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| 55 | if (!cm.getWrapperElement().contains(event.relatedTarget)) {
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| 56 | var data = cm.state.selectionPointer;
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| 57 | data.mouseX = data.mouseY = null;
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| 58 | scheduleUpdate(cm);
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| 59 | }
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| 60 | }
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| 61 |
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| 62 | function reset(cm) {
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| 63 | cm.state.selectionPointer.rects = null;
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| 64 | scheduleUpdate(cm);
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| 65 | }
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| 66 |
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| 67 | function scheduleUpdate(cm) {
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| 68 | if (!cm.state.selectionPointer.willUpdate) {
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| 69 | cm.state.selectionPointer.willUpdate = true;
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| 70 | setTimeout(function() {
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| 71 | update(cm);
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| 72 | cm.state.selectionPointer.willUpdate = false;
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| 73 | }, 50);
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| 74 | }
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| 75 | }
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| 76 |
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| 77 | function update(cm) {
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| 78 | var data = cm.state.selectionPointer;
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| 79 | if (!data) return;
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| 80 | if (data.rects == null && data.mouseX != null) {
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| 81 | data.rects = [];
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| 82 | if (cm.somethingSelected()) {
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| 83 | for (var sel = cm.display.selectionDiv.firstChild; sel; sel = sel.nextSibling)
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| 84 | data.rects.push(sel.getBoundingClientRect());
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| 85 | }
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| 86 | }
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| 87 | var inside = false;
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| 88 | if (data.mouseX != null) for (var i = 0; i < data.rects.length; i++) {
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| 89 | var rect = data.rects[i];
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| 90 | if (rect.left <= data.mouseX && rect.right >= data.mouseX &&
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| 91 | rect.top <= data.mouseY && rect.bottom >= data.mouseY)
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| 92 | inside = true;
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| 93 | }
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| 94 | var cursor = inside ? data.value : "";
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| 95 | if (cm.display.lineDiv.style.cursor != cursor)
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| 96 | cm.display.lineDiv.style.cursor = cursor;
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| 97 | }
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| 98 | });
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