code.vuplus.com Git - vuplus_webkit/blob - Source/WebCore/inspector/front-end/MetricsSidebarPane.js

   1 /*
   2  * Copyright (C) 2007 Apple Inc.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *
   8  * 1.  Redistributions of source code must retain the above copyright
   9  *     notice, this list of conditions and the following disclaimer.
  10  * 2.  Redistributions in binary form must reproduce the above copyright
  11  *     notice, this list of conditions and the following disclaimer in the
  12  *     documentation and/or other materials provided with the distribution.
  13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  14  *     its contributors may be used to endorse or promote products derived
  15  *     from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 WebInspector.MetricsSidebarPane = function()
  30 {
  31     WebInspector.SidebarPane.call(this, WebInspector.UIString("Metrics"));
  32
  33     WebInspector.cssModel.addEventListener(WebInspector.CSSStyleModel.Events.StyleSheetChanged, this._styleSheetChanged, this);
  34     WebInspector.domAgent.addEventListener(WebInspector.DOMAgent.Events.AttrModified, this._attributesUpdated, this);
  35 }
  36
  37 WebInspector.MetricsSidebarPane.prototype = {
  38     update: function(node)
  39     {
  40         if (node)
  41             this.node = node;
  42         this._innerUpdate();
  43     },
  44
  45     _innerUpdate: function()
  46     {
  47         // FIXME: avoid updates of a collapsed pane.
  48         var node = this.node;
  49
  50         if (!node || node.nodeType() !== Node.ELEMENT_NODE) {
  51             this.bodyElement.removeChildren();
  52             return;
  53         }
  54
  55         function callback(style)
  56         {
  57             if (!style || this.node !== node)
  58                 return;
  59             this._updateMetrics(style);
  60         }
  61         WebInspector.cssModel.getComputedStyleAsync(node.id, callback.bind(this));
  62
  63         function inlineStyleCallback(style)
  64         {
  65             if (!style || this.node !== node)
  66                 return;
  67             this.inlineStyle = style;
  68         }
  69         WebInspector.cssModel.getInlineStyleAsync(node.id, inlineStyleCallback.bind(this));
  70     },
  71
  72     _styleSheetChanged: function()
  73     {
  74         this._innerUpdate();
  75     },
  76
  77     _attributesUpdated: function(event)
  78     {
  79         if (this.node !== event.data)
  80             return;
  81
  82         // "style" attribute might have changed. Update metrics unless they are being edited.
  83         if (!this._isEditingMetrics)
  84             this._innerUpdate();
  85     },
  86
  87     _getPropertyValueAsPx: function(style, propertyName)
  88     {
  89         return Number(style.getPropertyValue(propertyName).replace(/px$/, "") || 0);
  90     },
  91
  92     _getBox: function(computedStyle, componentName)
  93     {
  94         var suffix = componentName === "border" ? "-width" : "";
  95         var left = this._getPropertyValueAsPx(computedStyle, componentName + "-left" + suffix);
  96         var top = this._getPropertyValueAsPx(computedStyle, componentName + "-top" + suffix);
  97         var right = this._getPropertyValueAsPx(computedStyle, componentName + "-right" + suffix);
  98         var bottom = this._getPropertyValueAsPx(computedStyle, componentName + "-bottom" + suffix);
  99         return { left: left, top: top, right: right, bottom: bottom };
 100     },
 101
 102     _highlightDOMNode: function(showHighlight, mode, event)
 103     {
 104         function enclosingOrSelfWithClassInArray(element, classNames)
 105         {
 106             for (var node = element; node && node !== element.ownerDocument; node = node.parentNode) {
 107                 if (node.nodeType === Node.ELEMENT_NODE) {
 108                     for (var i = 0; i < classNames.length; ++i) {
 109                         if (node.hasStyleClass(classNames[i]))
 110                             return node;
 111                     }
 112                 }
 113             }
 114             return null;
 115         }
 116
 117         function getBoxRectangleElement(element)
 118         {
 119             if (!element)
 120                 return null;
 121             return enclosingOrSelfWithClassInArray(element, ["metrics", "margin", "border", "padding", "content"]);
 122         }
 123
 124         event.stopPropagation();
 125         var fromElement = getBoxRectangleElement(event.fromElement);
 126         var toElement = getBoxRectangleElement(event.toElement);
 127
 128         if (fromElement === toElement)
 129             return;
 130
 131         function handleMouseOver(element)
 132         {
 133             element.addStyleClass("hovered");
 134
 135             var bgColor;
 136             if (element.hasStyleClass("margin"))
 137                 bgColor = WebInspector.Color.PageHighlight.Margin.toString("original");
 138             else if (element.hasStyleClass("border"))
 139                 bgColor = WebInspector.Color.PageHighlight.Border.toString("original");
 140             else if (element.hasStyleClass("padding"))
 141                 bgColor = WebInspector.Color.PageHighlight.Padding.toString("original");
 142             else if (element.hasStyleClass("content"))
 143                 bgColor = WebInspector.Color.PageHighlight.Content.toString("original");
 144             if (bgColor)
 145                 element.style.backgroundColor = bgColor;
 146         }
 147
 148         function handleMouseOut(element)
 149         {
 150             element.style.backgroundColor = "";
 151             element.removeStyleClass("hovered");
 152         }
 153
 154         if (showHighlight) {
 155             // Into element.
 156             if (this.node && toElement)
 157                 handleMouseOver(toElement);
 158             var nodeId = this.node ? this.node.id : 0;
 159         } else {
 160             // Out of element.
 161             if (fromElement)
 162                 handleMouseOut(fromElement);
 163             var nodeId = 0;
 164         }
 165         if (nodeId) {
 166             if (this._highlightMode === mode)
 167                 return;
 168             this._highlightMode = mode;
 169         } else
 170             delete this._highlightMode;
 171         WebInspector.highlightDOMNode(nodeId, mode);
 172     },
 173
 174     _updateMetrics: function(style)
 175     {
 176         // Updating with computed style.
 177         var metricsElement = document.createElement("div");
 178         metricsElement.className = "metrics";
 179         var self = this;
 180
 181         function createBoxPartElement(style, name, side, suffix)
 182         {
 183             var propertyName = (name !== "position" ? name + "-" : "") + side + suffix;
 184             var value = style.getPropertyValue(propertyName);
 185             if (value === "" || (name !== "position" && value === "0px"))
 186                 value = "\u2012";
 187             else if (name === "position" && value === "auto")
 188                 value = "\u2012";
 189             value = value.replace(/px$/, "");
 190
 191             var element = document.createElement("div");
 192             element.className = side;
 193             element.textContent = value;
 194             element.addEventListener("dblclick", this.startEditing.bind(this, element, name, propertyName, style), false);
 195             return element;
 196         }
 197
 198         function getContentAreaWidthPx(style)
 199         {
 200             var width = style.getPropertyValue("width").replace(/px$/, "");
 201             if (style.getPropertyValue("box-sizing") === "border-box") {
 202                 var borderBox = self._getBox(style, "border");
 203                 var paddingBox = self._getBox(style, "padding");
 204
 205                 width = width - borderBox.left - borderBox.right - paddingBox.left - paddingBox.right;
 206             }
 207
 208             return width;
 209         }
 210
 211         function getContentAreaHeightPx(style)
 212         {
 213             var height = style.getPropertyValue("height").replace(/px$/, "");
 214             if (style.getPropertyValue("box-sizing") === "border-box") {
 215                 var borderBox = self._getBox(style, "border");
 216                 var paddingBox = self._getBox(style, "padding");
 217
 218                 height = height - borderBox.top - borderBox.bottom - paddingBox.top - paddingBox.bottom;
 219             }
 220
 221             return height;
 222         }
 223
 224         // Display types for which margin is ignored.
 225         var noMarginDisplayType = {
 226             "table-cell": true,
 227             "table-column": true,
 228             "table-column-group": true,
 229             "table-footer-group": true,
 230             "table-header-group": true,
 231             "table-row": true,
 232             "table-row-group": true
 233         };
 234
 235         // Display types for which padding is ignored.
 236         var noPaddingDisplayType = {
 237             "table-column": true,
 238             "table-column-group": true,
 239             "table-footer-group": true,
 240             "table-header-group": true,
 241             "table-row": true,
 242             "table-row-group": true
 243         };
 244
 245         // Position types for which top, left, bottom and right are ignored.
 246         var noPositionType = {
 247             "static": true
 248         };
 249
 250         var boxes = ["content", "padding", "border", "margin", "position"];
 251         var boxLabels = [WebInspector.UIString("content"), WebInspector.UIString("padding"), WebInspector.UIString("border"), WebInspector.UIString("margin"), WebInspector.UIString("position")];
 252         var previousBox;
 253         for (var i = 0; i < boxes.length; ++i) {
 254             var name = boxes[i];
 255
 256             if (name === "margin" && noMarginDisplayType[style.getPropertyValue("display")])
 257                 continue;
 258             if (name === "padding" && noPaddingDisplayType[style.getPropertyValue("display")])
 259                 continue;
 260             if (name === "position" && noPositionType[style.getPropertyValue("position")])
 261                 continue;
 262
 263             var boxElement = document.createElement("div");
 264             boxElement.className = name;
 265             boxElement.addEventListener("mouseover", this._highlightDOMNode.bind(this, true, name === "position" ? "all" : name), false);
 266             boxElement.addEventListener("mouseout", this._highlightDOMNode.bind(this, false, ""), false);
 267
 268             if (name === "content") {
 269                 var widthElement = document.createElement("span");
 270                 widthElement.textContent = getContentAreaWidthPx(style);
 271                 widthElement.addEventListener("dblclick", this.startEditing.bind(this, widthElement, "width", "width", style), false);
 272
 273                 var heightElement = document.createElement("span");
 274                 heightElement.textContent = getContentAreaHeightPx(style);
 275                 heightElement.addEventListener("dblclick", this.startEditing.bind(this, heightElement, "height", "height", style), false);
 276
 277                 boxElement.appendChild(widthElement);
 278                 boxElement.appendChild(document.createTextNode(" \u00D7 "));
 279                 boxElement.appendChild(heightElement);
 280             } else {
 281                 var suffix = (name === "border" ? "-width" : "");
 282
 283                 var labelElement = document.createElement("div");
 284                 labelElement.className = "label";
 285                 labelElement.textContent = boxLabels[i];
 286                 boxElement.appendChild(labelElement);
 287
 288                 boxElement.appendChild(createBoxPartElement.call(this, style, name, "top", suffix));
 289                 boxElement.appendChild(document.createElement("br"));
 290                 boxElement.appendChild(createBoxPartElement.call(this, style, name, "left", suffix));
 291
 292                 if (previousBox)
 293                     boxElement.appendChild(previousBox);
 294
 295                 boxElement.appendChild(createBoxPartElement.call(this, style, name, "right", suffix));
 296                 boxElement.appendChild(document.createElement("br"));
 297                 boxElement.appendChild(createBoxPartElement.call(this, style, name, "bottom", suffix));
 298             }
 299
 300             previousBox = boxElement;
 301         }
 302
 303         metricsElement.appendChild(previousBox);
 304         metricsElement.addEventListener("mouseover", this._highlightDOMNode.bind(this, true, ""), false);
 305         metricsElement.addEventListener("mouseout", this._highlightDOMNode.bind(this, false, ""), false);
 306         this.bodyElement.removeChildren();
 307         this.bodyElement.appendChild(metricsElement);
 308     },
 309
 310     startEditing: function(targetElement, box, styleProperty, computedStyle)
 311     {
 312         if (WebInspector.isBeingEdited(targetElement))
 313             return;
 314
 315         var context = { box: box, styleProperty: styleProperty, computedStyle: computedStyle };
 316         var boundKeyDown = this._handleKeyDown.bind(this, context, styleProperty);
 317         context.keyDownHandler = boundKeyDown;
 318         targetElement.addEventListener("keydown", boundKeyDown, false);
 319
 320         this._isEditingMetrics = true;
 321         WebInspector.startEditing(targetElement, {
 322             context: context,
 323             commitHandler: this.editingCommitted.bind(this),
 324             cancelHandler: this.editingCancelled.bind(this)
 325         });
 326         window.getSelection().setBaseAndExtent(targetElement, 0, targetElement, 1);
 327     },
 328
 329     _handleKeyDown: function(context, styleProperty, event)
 330     {
 331         if (!/^(?:Page)?(?:Up|Down)$/.test(event.keyIdentifier))
 332             return;
 333         var element = event.currentTarget;
 334
 335         var selection = window.getSelection();
 336         if (!selection.rangeCount)
 337             return;
 338
 339         var selectionRange = selection.getRangeAt(0);
 340         if (selectionRange.commonAncestorContainer !== element && !selectionRange.commonAncestorContainer.isDescendant(element))
 341             return;
 342
 343         var originalValue = element.textContent;
 344         var wordRange = selectionRange.startContainer.rangeOfWord(selectionRange.startOffset, WebInspector.StylesSidebarPane.StyleValueDelimiters, element);
 345         var wordString = wordRange.toString();
 346
 347         var matches = /(.*?)(-?(?:\d+(?:\.\d+)?|\.\d+))(.*)/.exec(wordString);
 348         var replacementString;
 349         if (matches && matches.length) {
 350             prefix = matches[1];
 351             suffix = matches[3];
 352             number = WebInspector.StylesSidebarPane.alteredFloatNumber(parseFloat(matches[2]), event);
 353             if (number === null) {
 354                 // Need to check for null explicitly.
 355                 return;
 356             }
 357
 358             if (styleProperty !== "margin" && number < 0)
 359                 number = 0;
 360
 361             replacementString = prefix + number + suffix;
 362         }
 363         if (!replacementString)
 364             return;
 365
 366         var replacementTextNode = document.createTextNode(replacementString);
 367
 368         wordRange.deleteContents();
 369         wordRange.insertNode(replacementTextNode);
 370
 371         var finalSelectionRange = document.createRange();
 372         finalSelectionRange.setStart(replacementTextNode, 0);
 373         finalSelectionRange.setEnd(replacementTextNode, replacementString.length);
 374
 375         selection.removeAllRanges();
 376         selection.addRange(finalSelectionRange);
 377
 378         event.handled = true;
 379         event.preventDefault();
 380         this._applyUserInput(element, replacementString, originalValue, context, false);
 381     },
 382
 383     editingEnded: function(element, context)
 384     {
 385         delete this.originalPropertyData;
 386         delete this.previousPropertyDataCandidate;
 387         element.removeEventListener("keydown", context.keyDownHandler, false);
 388         delete this._isEditingMetrics;
 389     },
 390
 391     editingCancelled: function(element, context)
 392     {
 393         if ("originalPropertyData" in this && this.inlineStyle) {
 394             if (!this.originalPropertyData) {
 395                 // An added property, remove the last property in the style.
 396                 var pastLastSourcePropertyIndex = this.inlineStyle.pastLastSourcePropertyIndex();
 397                 if (pastLastSourcePropertyIndex)
 398                     this.inlineStyle.allProperties[pastLastSourcePropertyIndex - 1].setText("", false);
 399             } else
 400                 this.inlineStyle.allProperties[this.originalPropertyData.index].setText(this.originalPropertyData.propertyText, false);
 401         }
 402         this.editingEnded(element, context);
 403         this.update();
 404     },
 405
 406     _applyUserInput: function(element, userInput, previousContent, context, commitEditor)
 407     {
 408         if (!this.inlineStyle) {
 409             // Element has no renderer.
 410             delete this.originalPropertyValue;
 411             return this.editingCancelled(element, context); // nothing changed, so cancel
 412         }
 413
 414         if (commitEditor && userInput === previousContent)
 415             return this.editingCancelled(element, context); // nothing changed, so cancel
 416
 417         if (context.box !== "position" && (!userInput || userInput === "\u2012"))
 418             userInput = "0px";
 419         else if (context.box === "position" && (!userInput || userInput === "\u2012"))
 420             userInput = "auto";
 421
 422         userInput = userInput.toLowerCase();
 423         // Append a "px" unit if the user input was just a number.
 424         if (/^\d+$/.test(userInput))
 425             userInput += "px";
 426
 427         var styleProperty = context.styleProperty;
 428         var computedStyle = context.computedStyle;
 429
 430         if (computedStyle.getPropertyValue("box-sizing") === "border-box" && (styleProperty === "width" || styleProperty === "height")) {
 431             if (!userInput.match(/px$/)) {
 432                 WebInspector.log("For elements with box-sizing: border-box, only absolute content area dimensions can be applied", WebInspector.ConsoleMessage.MessageLevel.Error);
 433                 WebInspector.showConsole();
 434                 return;
 435             }
 436
 437             var borderBox = this._getBox(computedStyle, "border");
 438             var paddingBox = this._getBox(computedStyle, "padding");
 439             var userValuePx = Number(userInput.replace(/px$/, ""));
 440             if (isNaN(userValuePx))
 441                 return;
 442             if (styleProperty === "width")
 443                 userValuePx += borderBox.left + borderBox.right + paddingBox.left + paddingBox.right;
 444             else
 445                 userValuePx += borderBox.top + borderBox.bottom + paddingBox.top + paddingBox.bottom;
 446
 447             userInput = userValuePx + "px";
 448         }
 449
 450         this.previousPropertyDataCandidate = null;
 451         var self = this;
 452         var callback = function(style) {
 453             if (!style)
 454                 return;
 455             self.inlineStyle = style;
 456             if (!("originalPropertyData" in self))
 457                 self.originalPropertyData = self.previousPropertyDataCandidate;
 458             if ("_highlightMode" in self) {
 459                 WebInspector.highlightDOMNode(0, "");
 460                 WebInspector.highlightDOMNode(self.node.id, self._highlightMode);
 461             }
 462             if (commitEditor) {
 463                 self.dispatchEventToListeners("metrics edited");
 464                 self.update();
 465             }
 466         };
 467
 468         var allProperties = this.inlineStyle.allProperties;
 469         for (var i = 0; i < allProperties.length; ++i) {
 470             var property = allProperties[i];
 471             if (property.name !== context.styleProperty || property.inactive)
 472                 continue;
 473
 474             this.previousPropertyDataCandidate = property;
 475             property.setValue(userInput, commitEditor, callback);
 476             return;
 477         }
 478
 479         this.inlineStyle.appendProperty(context.styleProperty, userInput, callback);
 480     },
 481
 482     editingCommitted: function(element, userInput, previousContent, context)
 483     {
 484         this.editingEnded(element, context);
 485         this._applyUserInput(element, userInput, previousContent, context, true);
 486     }
 487 }
 488
 489 WebInspector.MetricsSidebarPane.prototype.__proto__ = WebInspector.SidebarPane.prototype;