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
29WebInspector.MetricsSidebarPane = function()
30{
31    WebInspector.SidebarPane.call(this, WebInspector.UIString("Metrics"));
32    this._inlineStyleId = null;
33}
34
35WebInspector.MetricsSidebarPane.prototype = {
36    update: function(node)
37    {
38        if (node)
39            this.node = node;
40        else
41            node = this.node;
42
43        if (!node || node.nodeType() !== Node.ELEMENT_NODE) {
44            this.bodyElement.removeChildren();
45            return;
46        }
47
48        var self = this;
49        var callback = function(style) {
50            if (!style)
51                return;
52            self._update(style);
53        };
54        WebInspector.cssModel.getComputedStyleAsync(node.id, callback);
55
56        var inlineStyleCallback = function(style) {
57            if (!style)
58                return;
59            self.inlineStyle = style;
60        };
61        WebInspector.cssModel.getInlineStyleAsync(node.id, inlineStyleCallback);
62    },
63
64    _getPropertyValueAsPx: function(style, propertyName)
65    {
66        return Number(style.getPropertyValue(propertyName).replace(/px$/, "") || 0);
67    },
68
69    _getBox: function(computedStyle, componentName)
70    {
71        var suffix = componentName === "border" ? "-width" : "";
72        var left = this._getPropertyValueAsPx(computedStyle, componentName + "-left" + suffix);
73        var top = this._getPropertyValueAsPx(computedStyle, componentName + "-top" + suffix);
74        var right = this._getPropertyValueAsPx(computedStyle, componentName + "-right" + suffix);
75        var bottom = this._getPropertyValueAsPx(computedStyle, componentName + "-bottom" + suffix);
76        return { left: left, top: top, right: right, bottom: bottom };
77    },
78
79    _update: function(style)
80    {
81        // Updating with computed style.
82        var metricsElement = document.createElement("div");
83        metricsElement.className = "metrics";
84        var self = this;
85
86        function createBoxPartElement(style, name, side, suffix)
87        {
88            var propertyName = (name !== "position" ? name + "-" : "") + side + suffix;
89            var value = style.getPropertyValue(propertyName);
90            if (value === "" || (name !== "position" && value === "0px"))
91                value = "\u2012";
92            else if (name === "position" && value === "auto")
93                value = "\u2012";
94            value = value.replace(/px$/, "");
95
96            var element = document.createElement("div");
97            element.className = side;
98            element.textContent = value;
99            element.addEventListener("dblclick", this.startEditing.bind(this, element, name, propertyName), false);
100            return element;
101        }
102
103        function getContentAreaWidthPx(style)
104        {
105            var width = style.getPropertyValue("width").replace(/px$/, "");
106            if (style.getPropertyValue("box-sizing") === "border-box") {
107                var borderBox = self._getBox(style, "border");
108                var paddingBox = self._getBox(style, "padding");
109
110                width = width - borderBox.left - borderBox.right - paddingBox.left - paddingBox.right;
111            }
112
113            return width;
114        }
115
116        function getContentAreaHeightPx(style)
117        {
118            var height = style.getPropertyValue("height").replace(/px$/, "");
119            if (style.getPropertyValue("box-sizing") === "border-box") {
120                var borderBox = self._getBox(style, "border");
121                var paddingBox = self._getBox(style, "padding");
122
123                height = height - borderBox.top - borderBox.bottom - paddingBox.top - paddingBox.bottom;
124            }
125
126            return height;
127        }
128
129        // Display types for which margin is ignored.
130        var noMarginDisplayType = {
131            "table-cell": true,
132            "table-column": true,
133            "table-column-group": true,
134            "table-footer-group": true,
135            "table-header-group": true,
136            "table-row": true,
137            "table-row-group": true
138        };
139
140        // Display types for which padding is ignored.
141        var noPaddingDisplayType = {
142            "table-column": true,
143            "table-column-group": true,
144            "table-footer-group": true,
145            "table-header-group": true,
146            "table-row": true,
147            "table-row-group": true
148        };
149
150        // Position types for which top, left, bottom and right are ignored.
151        var noPositionType = {
152            "static": true
153        };
154
155        var boxes = ["content", "padding", "border", "margin", "position"];
156        var boxLabels = [WebInspector.UIString("content"), WebInspector.UIString("padding"), WebInspector.UIString("border"), WebInspector.UIString("margin"), WebInspector.UIString("position")];
157        var previousBox;
158        for (var i = 0; i < boxes.length; ++i) {
159            var name = boxes[i];
160
161            if (name === "margin" && noMarginDisplayType[style.getPropertyValue("display")])
162                continue;
163            if (name === "padding" && noPaddingDisplayType[style.getPropertyValue("display")])
164                continue;
165            if (name === "position" && noPositionType[style.getPropertyValue("position")])
166                continue;
167
168            var boxElement = document.createElement("div");
169            boxElement.className = name;
170
171            if (name === "content") {
172                var widthElement = document.createElement("span");
173                widthElement.textContent = getContentAreaWidthPx(style);
174                widthElement.addEventListener("dblclick", this.startEditing.bind(this, widthElement, "width", "width", style), false);
175
176                var heightElement = document.createElement("span");
177                heightElement.textContent = getContentAreaHeightPx(style);
178                heightElement.addEventListener("dblclick", this.startEditing.bind(this, heightElement, "height", "height", style), false);
179
180                boxElement.appendChild(widthElement);
181                boxElement.appendChild(document.createTextNode(" \u00D7 "));
182                boxElement.appendChild(heightElement);
183            } else {
184                var suffix = (name === "border" ? "-width" : "");
185
186                var labelElement = document.createElement("div");
187                labelElement.className = "label";
188                labelElement.textContent = boxLabels[i];
189                boxElement.appendChild(labelElement);
190
191                boxElement.appendChild(createBoxPartElement.call(this, style, name, "top", suffix));
192                boxElement.appendChild(document.createElement("br"));
193                boxElement.appendChild(createBoxPartElement.call(this, style, name, "left", suffix));
194
195                if (previousBox)
196                    boxElement.appendChild(previousBox);
197
198                boxElement.appendChild(createBoxPartElement.call(this, style, name, "right", suffix));
199                boxElement.appendChild(document.createElement("br"));
200                boxElement.appendChild(createBoxPartElement.call(this, style, name, "bottom", suffix));
201            }
202
203            previousBox = boxElement;
204        }
205
206        metricsElement.appendChild(previousBox);
207        this.bodyElement.removeChildren();
208        this.bodyElement.appendChild(metricsElement);
209    },
210
211    startEditing: function(targetElement, box, styleProperty, computedStyle)
212    {
213        if (WebInspector.isBeingEdited(targetElement))
214            return;
215
216        var context = { box: box, styleProperty: styleProperty, computedStyle: computedStyle };
217
218        WebInspector.startEditing(targetElement, {
219            context: context,
220            commitHandler: this.editingCommitted.bind(this),
221            cancelHandler: this.editingCancelled.bind(this)
222        });
223    },
224
225    editingCancelled: function(element, context)
226    {
227        this.update();
228    },
229
230    editingCommitted: function(element, userInput, previousContent, context)
231    {
232        if (!this.inlineStyle) {
233            // Element has no renderer.
234            return this.editingCancelled(element, context); // nothing changed, so cancel
235        }
236
237        if (userInput === previousContent)
238            return this.editingCancelled(element, context); // nothing changed, so cancel
239
240        if (context.box !== "position" && (!userInput || userInput === "\u2012"))
241            userInput = "0px";
242        else if (context.box === "position" && (!userInput || userInput === "\u2012"))
243            userInput = "auto";
244
245        userInput = userInput.toLowerCase();
246        // Append a "px" unit if the user input was just a number.
247        if (/^\d+$/.test(userInput))
248            userInput += "px";
249
250        var styleProperty = context.styleProperty;
251        var computedStyle = context.computedStyle;
252
253        if (computedStyle.getPropertyValue("box-sizing") === "border-box" && (styleProperty === "width" || styleProperty === "height")) {
254            if (!userInput.match(/px$/)) {
255                WebInspector.log("For elements with box-sizing: border-box, only absolute content area dimensions can be applied", WebInspector.ConsoleMessage.MessageLevel.Error);
256                WebInspector.showConsole();
257                return;
258            }
259
260            var borderBox = this._getBox(computedStyle, "border");
261            var paddingBox = this._getBox(computedStyle, "padding");
262            var userValuePx = Number(userInput.replace(/px$/, ""));
263            if (isNaN(userValuePx))
264                return;
265            if (styleProperty === "width")
266                userValuePx += borderBox.left + borderBox.right + paddingBox.left + paddingBox.right;
267            else
268                userValuePx += borderBox.top + borderBox.bottom + paddingBox.top + paddingBox.bottom;
269
270            userInput = userValuePx + "px";
271        }
272
273        var self = this;
274        var callback = function(style) {
275            if (!style)
276                return;
277            self.inlineStyle = style;
278            self.dispatchEventToListeners("metrics edited");
279            self.update();
280        };
281
282        function setEnabledValueCallback(context, style)
283        {
284            var property = style.getLiveProperty(styleProperty);
285            if (!property)
286                style.appendProperty(context.styleProperty, userInput, callback);
287             else
288                property.setValue(userInput, callback);
289        }
290
291        var allProperties = this.inlineStyle.allProperties;
292        for (var i = 0; i < allProperties.length; ++i) {
293            var property = allProperties[i];
294            if (property.name !== context.styleProperty || property.inactive)
295                continue;
296            if (property.disabled)
297                property.setDisabled(false, setEnabledValueCallback.bind(null, context));
298            else
299                property.setValue(userInput, callback);
300            return;
301        }
302
303        this.inlineStyle.appendProperty(context.styleProperty, userInput, callback);
304    }
305}
306
307WebInspector.MetricsSidebarPane.prototype.__proto__ = WebInspector.SidebarPane.prototype;
308