Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 | 1x 1x 1x 1x 1x 1x 1x 120x 120x 120x 120x 120x 120x 120x 120x 120x 120x 120x 120x 362x 362x 362x 362x 362x 362x 362x 362x 362x 362x 120x 120x 515x 515x 515x 285x 285x 285x 285x 285x 285x 285x 13x 13x 13x 11x 21248x 21248x 21248x 21248x 369x 198x 171x 1x | /** * @fileoverview UI component that represents a caret in the document. * @author Dmytro Antonenko <dmitry.antonenko@pubwebkit.com> */ import {RuntimeTextStylesConfiguration} from './text/runtime_text_styles_configuration.js'; import {RuntimeTextStylesConfigurationEventType} from './text/runtime_text_styles_configuration_event_type.js'; goog.declareModuleId('pwk.Caret'); const Component = goog.require('goog.ui.Component'); const classlist = goog.require('goog.dom.classlist'); const events = goog.require('goog.events'); const style = goog.require('goog.style'); const DomHelper = goog.requireType('goog.dom.DomHelper'); const {RangeOffset} = goog.requireType('pwk.range.RangeOffset'); /** * Caret component. * @extends {Component} */ export class Caret extends Component { /** * @param {!DomHelper=} opt_domHelper Optional DOM helper, used for document * interaction. */ constructor(opt_domHelper) { super(opt_domHelper); /** * Indicates if cursor visible. * @type {boolean} * @private */ this.isVisible_ = false; /** * @type {number} * @private */ this.blinkId_; /** * @const {!RuntimeTextStylesConfiguration} * @private */ this.runtimeTextStylesConfiguration_ = RuntimeTextStylesConfiguration.getInstance(); } /** @override */ createDom() { super.createDom(); // Create element and apply classes let element = this.getElement(); // Set css class classlist.add(element, Caret.CSS_CLASS); // Set unselectable style.setUnselectable(element, true); // Hide this.hide(); } /** @override */ enterDocument() { super.enterDocument(); events.listen( this.runtimeTextStylesConfiguration_, RuntimeTextStylesConfigurationEventType.FONT_CONFIGURATION_CHANGE, this.handleRuntimeFontConfigurationChange_, false, this); events.listen( this.runtimeTextStylesConfiguration_, RuntimeTextStylesConfigurationEventType.SELECTION_CHANGE, this.handleRuntimeFontConfigurationChange_, false, this); } /** * Set caret position from caret range offset. * @param {!RangeOffset} rangeOffset */ updateCaretPositionFromRangeOffset(rangeOffset) { // Get coordinates const offsetBounds = rangeOffset.getNodeBounds(); const element = this.getElement(); const parentBounds = style.getBounds(element.parentElement); const nodeBounds = style.getBounds(rangeOffset.getNode().getElement()); const leftDelta = nodeBounds.left - parentBounds.left; const caretLeft = leftDelta + offsetBounds.left; const caretTop = offsetBounds.top + nodeBounds.top - parentBounds.top; // Update position and height element.style.left = caretLeft + 'px'; element.style.top = caretTop + 'px'; element.style.height = offsetBounds.height + 'px'; } /** @override */ disposeInternal() { this.hide(); super.disposeInternal(); } /** Hides cursor. */ hide() { clearInterval(this.blinkId_); this.isVisible_ = false; this.getElement().style.visibility = 'hidden'; } /** Shows cursor. */ show() { this.isVisible_ = true; this.getElement().style.visibility = 'visible'; this.restartTimer(); } /** Restarts blink interval. */ restartTimer() { clearInterval(this.blinkId_); Iif (!this.isVisible_) { return; } const element = this.getElement(); this.blinkId_ = setInterval(() => { element.style.visibility = 'hidden'; setTimeout(() => { if (this.isVisible_) { element.style.visibility = 'visible'; } }, 400); }, 1000); } /** * Handler for {@link pwk.text.RuntimeTextStylesConfigurationEventType.FONT_CONFIGURATION_CHANGE} event. * @param {!Event} e Selection event to handle. * @private */ handleRuntimeFontConfigurationChange_(e) { this.updateCaretTilt_(); } /** * Sets update caret tilt based on RuntimeTextStylesConfiguration state. * @private */ updateCaretTilt_() { const element = this.getElement(); const fontDetails = this.runtimeTextStylesConfiguration_.getFontStyleConfiguration(); if (element) { if (fontDetails && fontDetails.fontStyle === 'italic') { element.style.transform = 'rotate(10deg)'; } else { element.style.transform = 'none'; } } } } /** * Default css class. * @const {string} */ Caret.CSS_CLASS = 'pwk-caret'; |