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sideBar.js
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var
_debug = false, // debug mode, control the debug message output or not
// _debug = true, // debug mode, control the debug message output or not
config = {
mark: true,
autoLocate: false,
clear: true,
opacity: 0.6,
color: 'red',
// color: '#4d90fe',
debug: _debug,
toStr: function () {
var str = "{";
for (var p in config) {
var value = '';
if (config.hasOwnProperty(p) && p != 'toStr') {
switch (typeof config[p]) {
case 'string':
value = "\'" + config[p] + "\'";
break;
case 'boolean':
default:
value = config[p];
break;
}
str = str + p + ":" + value + ', ';
}
}
str = str.trim().replace(/\,$/, '}');
return str;
}
},
modelArrGlobal,
selectChange,
selectorGlobal; // for user-defined selector
/**
* Add/Remove the selection-change event listener
* @param toAdd {boolean}
*/
function toggleSelectionListener(toAdd) {
if (toAdd) {
chrome.devtools.panels.elements.onSelectionChanged.addListener(selectionChangedListener);
} else {
chrome.devtools.panels.elements.onSelectionChanged.removeListener(selectionChangedListener);
}
}
// Inject the Tag object into current page after selector side pane was created.
injectTag();
/**
* Inject Tag object.
*/
function injectTag() {
//
inspectEval("typeof Tag", function (result) {
if (result == 'undefined') {
inspectEval("Tag = null; " + Tag.toStr(), function (result, isException) {
if(!isException){
_debug && console.debug("Inject the Tag object into current page.");
}
});
}
});
}
/**
* onSelectionChanged listener
*/
function selectionChangedListener() {
injectTag();
inspectEval("(function(config){var tag = new Tag(null, config); return {selector: tag.selector, modelArray:" +
" tag.modelArray}})(" + config.toStr() + ")", function (result) {
_debug && console.log("selection changed.");
selectorGlobal = result.selector;
modelArrGlobal = result["modelArray"].reverse();
var content = document.getElementsByClassName("content")[0];
// clear the old content.
clearContent(content);
// show the selector
setResult(selectorGlobal, true);
// create the dom structure
createTagModal(modelArrGlobal, content);
// resize the result window
resize();
});
}
/**
* Create the model(similar to a dom model)
* @param modelArr {Array}
* @param content {Element}
*/
function createTagModal(modelArr, content) {
if (!isNotEmpty(modelArr)) {
return;
}
for (var i = 0; i < modelArr.length; i++) {
content.appendChild(createTagLine(modelArr, i));
}
}
/**
* Create a line that contains a tag's dom info.
* @param modelArr {Array}
* @param modelArrIndex {number}
* @returns {Element}
*/
function createTagLine(modelArr, modelArrIndex) {
var
model = modelArr[modelArrIndex],
_modelIndex = 0,
_model = model[_modelIndex],
_modelAttrIndex = 1,
_modelArr = model[_modelAttrIndex],
clazz = "tag-line-" + modelArrIndex,
attrLineClass = "tag-line-attr-" + modelArrIndex,
ul = document.createElement("ul"),
li = document.createElement("li");
ul.classList.add(clazz);
for (var i = 0; i < _model.length; i++) {
_model[i] && li.appendChild(createPiece(_model[i], i, _modelIndex, modelArrIndex));
}
ul.appendChild(li);
if (_modelArr) {
ul.appendChild(createTagAttr(_modelArr, attrLineClass, 1, modelArrIndex));
ul.classList.add("hasAttr");
ul.firstChild.insertBefore(createActionTag(attrLineClass), ul.firstChild.firstChild);
} else {
ul.classList.add("noAttr");
}
return ul;
}
/**
* Create tag's attributes.
* @param attrs {Array}
* @param clazz {string}
* @returns {Element}
* @param modelIndex {index}
* @param modelArrIndex {index}
* @returns {Element}
*/
function createTagAttr(attrs, clazz, modelIndex, modelArrIndex) {
var li = document.createElement("li");
li.classList.add(clazz);
for (var i = 0; i < attrs.length; i++) {
attrs[i] && li.appendChild(createPiece(attrs[i], i, modelIndex, modelArrIndex));
}
return li;
}
/**
* Create a model item's part.
* @param item {string}
* @param spanIndex {number}
* @param modelIndex {number}
* @param modelArrIndex {number}
* @returns {Element}
*/
function createPiece(item, spanIndex, modelIndex, modelArrIndex) {
var
clazz = "",
clazz2 = "item-" + spanIndex,
str = item["value"],
isCheck = item["check"],
overFlowHide = "overflow-hide",
span = document.createElement("span");
span.setAttribute("title", str);
if (str.indexOf(".") == 0) { // class
clazz = "tagClass";
} else if (str.indexOf("#") == 0) { // id
clazz = "tagId";
} else if (str.indexOf("[") == 0) { // attribute
clazz = "tagAttr";
} else { // tag name
clazz = "tagName";
}
span.innerText = str;
span.classList.add(clazz);
span.classList.add(clazz2);
isCheck && span.classList.add("isCheck");
if (clazz != "tagName") {
span.classList.add(overFlowHide);
}
// Custom selector
span.dataset.index = [modelArrIndex, modelIndex, spanIndex];
span.addEventListener("mousedown", pieceListener.bind(span));
return span;
}
/**
* Create expand/collapse tag.
* @param target {string}
* @returns {Element}
*/
function createActionTag(target) {
var
clazz = ["fa-caret-right", "fa-caret-down", "fa"],
tag = document.createElement("i");
tag.classList.add(clazz[2]);
tag.classList.add(clazz[0]);
tag.setAttribute("target", target);
tag.addEventListener("click", actionListener.bind(tag));
return tag;
/**
* Expand/Collapsing event handler
*/
function actionListener() {
if (this.classList.contains(clazz[0])) {
this.classList.remove(clazz[0]);
this.classList.add(clazz[1]);
} else if (this.classList.contains(clazz[1])) {
this.classList.remove(clazz[1]);
this.classList.add(clazz[0]);
}
var targetTag = document.getElementsByClassName(this.getAttribute("target"))[0];
targetTag.classList.toggle("show");
// Resize the side pane.
resize();
}
}
/**
* Clear the content
* @param element {Element}
*/
function clearContent(element) {
element.innerText = "";
}
/**
* Show the selector
* @param selector {string}
* @param toCopy {boolean}
*/
function setResult(selector, toCopy) {
var
supportJQ = true,
selectorSpan = document.querySelector(".selector"),
calcContainer = document.querySelector(".calc-container"),
numSpan = document.querySelector(".selector-num");
selectorSpan.title = getI18nMsg("copy_selector_only");
selectorSpan.style.cursor = 'pointer';
selectorSpan.classList.add("active");
selectorSpan.removeEventListener("click", copySelectorToClip);
selectorSpan.addEventListener("click", copySelectorToClip);
// Hide the calculator panel.
calcContainer.style.display = 'none';
inspectEval(
"jQuery.fn.jquery",
function (result, isException) {
var toWarn = "";
if (isException) {
supportJQ = false;
toWarn = getI18nMsg("tips_no_jq");
} else {
_debug && console.debug("jQuery version " + result);
}
selectorSpan.innerHTML = "jQuery('" + selector + "');";
// Show the copy result.
toCopy && copyToClipboard(_debug);
// 要先拷贝后再提示(由于提示时会隐藏结果标签，复制不成功)
toWarn && warn(toWarn, 1000);
inspectEval("document.querySelectorAll('" + selector + "').length", function (res, ex) {
if (ex) {
inspectEval("jQuery('" + selector + "').length", function (r, e) {
if (e) {
if (!selector || !selector.trim()) {
numSpan.innerHTML = "0";
} else {
numSpan.innerHTML = getI18nMsg("elements_length_wrong");
}
} else {
numSpan.innerHTML = r;
}
})
} else {
numSpan.innerHTML = res;
}
});
}
);
}
/**
* Span {tagName, tagId, tagClass} click event handler
*/
function pieceListener(event) {
if (event['which'] == 1) {
var
isChkCls = "isCheck",
index = this.dataset.index.split(","),
isCheck = this.classList.contains(isChkCls);
this.classList.toggle(isChkCls);
_debug && console.debug(isCheck);
modelArrGlobal[index[0]][index[1]][index[2]]["check"] = !isCheck;
selectorGlobal = modelToSelector();
setResult(selectorGlobal, false);
} else if (event['which'] == 3) {
// Copy span's value (tagName , tagId, tagClass).
var
me = this,
msg = '',
range = document.createRange();
try {
range.selectNode(me);
window.getSelection().removeAllRanges();
window.getSelection().addRange(range);
msg = document.execCommand("copy") ? getI18nMsg("copy_success") : getI18nMsg("copy_failed");
} catch (err) {
msg = getI18nMsg("copy_failed_exception");
} finally {
window.getSelection().removeAllRanges();
}
warn(msg, 300);
}
}
/**
* Turn model into selector
* @returns {string}
*/
function modelToSelector() {
var
indexCache = -1,
selector = "";
selectChange = true;
for (var i = 0; i < modelArrGlobal.length; i++) {
var
isChild = "", //
subSelector = "",
model = modelArrGlobal[i],
modelItem = model[0], // model[0]: [tagName-object,id-object,class-object,class-object,...]
attrs = model[1],// attributes
numStartClass = false;
for (var j = 0; j < modelItem.length; j++) {
var itemObject = modelItem[j];
if (itemObject && itemObject["check"]) {
if (/\.\d/.test(itemObject['value'])) {
numStartClass = true;
}
// Id whether to contain digital.
if (itemObject['value'].indexOf("#") == 0 && /\d/.test(itemObject['value'])) {
subSelector = subSelector + '[id="' + itemObject['value'].replace("#", '') + '"]';
} else {
subSelector = subSelector + itemObject['value'];
}
//
isChild = ((indexCache + 1) == i) ? " > " : " ";
}
}
if (numStartClass) {
var theClass = subSelector.substring(subSelector.lastIndexOf(' '), subSelector.length);
subSelector = '[class="' + theClass.split('.').join(' ') + '"]';
}
var attrStr = "";
if (isNotEmptyO(attrs)) {
for (var k = 0; k < attrs.length; k++) {
var attrObj = attrs[k];
if (isNotEmptyO(attrObj)) {
if (attrObj['check']) {
attrStr = attrStr + attrObj['value'];
}
}
}
if (!subSelector && attrStr) {
//
isChild = ((indexCache + 1) == i) ? " > " : " ";
}
}
if (subSelector) {
subSelector = subSelector + attrStr;
if (indexCache != -1) {
selector = selector + isChild + subSelector;
} else {
selector = subSelector;
}
indexCache = i;
} else {
if (isChild) {
if (indexCache != -1) {
selector = selector + isChild + attrStr;
} else {
selector = attrStr;
}
indexCache = i;
}
}
}
return selector;
}
// /****************************************toolbar*******************************************/
document.querySelector(".label-elements-length").innerHTML = getI18nMsg("label_elements_length");
document.querySelector(".label-jQuery-expression").innerHTML = getI18nMsg("label_jQuery_expression");
document.querySelector(".label-jQuery-expression").title = getI18nMsg("label_jQuery_expression_click");
document.querySelector(".selector").innerHTML = getI18nMsg("label_jQuery_expression_default");
var
/**
* toolbar item's class
* @type {string[]}
*/
barItems = ["auto_locate", "locate", "mark", "clear", "copy", "jq"],
/**
* the toolbar
* @type {Element}
*/
bar = document.getElementsByClassName("toolbar")[0];
for (var i = 0; i < barItems.length; i++) {
var
clickListener = null,
clazz = barItems[i],
prefix = "toolbar_tips_",
item = bar.querySelector("." + clazz);
item.title = getI18nMsg(prefix + clazz);
switch (clazz) {
// location button
case barItems[0]:
clickListener = autoLocate;
break;
// auto-location button
case barItems[1]:
clickListener = locate;
break;
// mark all tag
case barItems[2]:
clickListener = markAll;
break;
// clear all cover layers
case barItems[3]:
clickListener = unMarkAll;
break;
// copy result to clipboard
case barItems[4]:
clickListener = copyToClipboard;
break;
case barItems[5]:
clickListener = loadJQ;
break;
default:
break;
}
item.addEventListener("click", clickListener.bind(item));
}
var
clickTag = document.querySelector(".label-jQuery-expression"),
calcContainer = document.querySelector(".calc-container");
clickTag.addEventListener("click", calc.bind(calcContainer));
/**
* scroll the selected element into the view.
*/
function locate() {
inspectEval("$tag.locate(null , true)");
}
/**
* Change the autoLocate switch.
*/
function autoLocate() {
var
switchOff = "fa-toggle-off",
switchOn = "fa-toggle-on",
clazzs = this.classList;
if (clazzs.contains(switchOff)) {
this.classList.remove(switchOff);
this.classList.add(switchOn);
config.autoLocate = true;
} else if (clazzs.contains(switchOn)) {
this.classList.remove(switchOn);
this.classList.add(switchOff);
config.autoLocate = false;
}
}
/**
* Mark all the elements corresponding to the selector.
*/
function markAll() {
inspectEval("$tag != null", function (result, isException) {
if (!isException && result) {
inspectEval("$tag.cover(document.querySelectorAll('" + selectorGlobal + "'), true, true)", function (result,
isExcept) {
_debug && console.log("markAll invoked, " + result + " elements were covered.");
});
}
});
}
/**
* Clear all cover layers
*/
function unMarkAll() {
inspectEval("$tag != null", function (result) {
result && inspectEval("$tag.clearAllCover();", function (res, isEx) {
if (isEx) {
warn(getI18nMsg("clear_failed"), 300);
} else {
warn(getI18nMsg("clear_success"), 300);
}
});
});
}
/**
* Copy the result to clipboard.
* @param toWarn
*/
function copyToClipboard(toWarn) {
var
msg = "",
range = document.createRange(),
span = document.querySelector(".result > .selector.active"),
input = document.querySelector(".calc-editor");
if (span) {
// 针对没有select()方法的元素
range.selectNode(span);
window.getSelection().removeAllRanges();
window.getSelection().addRange(range);
} else {
input.select();
}
try {
msg = document.execCommand("copy") ? getI18nMsg("copy_success") : getI18nMsg("copy_failed");
} catch (err) {
msg = getI18nMsg('copy_failed_exception');
}
window.getSelection().removeAllRanges();
toWarn && warn(msg, 300);
}
/**
* Copy the selector to clipboard.
*/
function copySelectorToClip() {
var
msg = "",
range = document.createRange(),
span = document.querySelector(".result > .selector.active"),
text = span.innerText,
_text = text;
if (span) {
// 针对没有select()方法的元素
_text = _text.replace("jQuery('", "").replace("');", "");
span.innerText = _text;
range.selectNode(span);
window.getSelection().removeAllRanges();
window.getSelection().addRange(range);
try {
msg = document.execCommand("copy") ? getI18nMsg("copy_success") : getI18nMsg("copy_failed");
} catch (err) {
msg = getI18nMsg('copy_failed_exception');
}
window.getSelection().removeAllRanges();
span.innerText = text;
warn(msg, 300);
}
}
/**
* TODO
* 标记所有的可点击链接
* cursor:pointer + a[href]
* visible:true
* 对于overflow:hidden的(例如焦点图)查找其container
*/
function markAllLinks() {
}
/**
* Inject the jQuery object.
*/
function loadJQ() {
inspectEval("jQuery.fn.jquery", function (result, isException) {
if (isException) { // The current page don't contains jQuery object.
inspectEval(jQString, function (res, isEx) {
if (!isEx) {
window.setTimeout(function () {
inspectEval("jQuery.fn.jquery", function (r, ex) {
if (!ex) {
warn(getI18nMsg("tips_inject_jq_success", r), 2000);
} else {
warn(getI18nMsg("tips_can_not_inject_jq"), 2000);
}
})
}, 1000);
} else {
warn(getI18nMsg("tips_inject_jq_failed"));
}
})
} else {
warn(getI18nMsg("tips_exist_jq", result));
}
});
}
/**
* Calculation jQuery expression.
*/
function calc() {
var
me = this,
selector = document.querySelector(".selector");
// Hide results display area
selector.classList.remove("active");
me.style.display = 'block';
me.innerHTML = '';
destroyInput();
window['_history'] = window['_history'] || [];
window['_h_index'] = window['_h_index'] || 0; // Current index in history array.
window['_s_index'] = -1; //
window['_s_length'] = -1; //
/**
* Create the toolbar which belongs to the calculator panel.
* <input type="text"><i class="fa fa-caret-left"></i><i class="fa fa-search"></i><i class="fa fa-caret-right"></i>
*/
var
input = tag("textarea", "calc-editor",
{
title: getI18nMsg("calc_tips_alt_upOrDown"),
style: "width: 418px;" + " font-size: 12px; font-family: monospace; border: 1px solid silver"
}
),
iSearch = tag("i", ['fa', 'fa-search'], {title: getI18nMsg("calc_tips_search")}),
iLeft = tag("i", ['fa', 'fa-caret-left'], {title: getI18nMsg("calc_tips_prev_element")}),
iRight = tag("i", ['fa', 'fa-caret-right'], {title: getI18nMsg("calc_tips_next_element")}),
iExecute = tag("i", ['fa', 'fa-play'], {title: getI18nMsg("calc_tips_eval_expression")}),
iUp = tag("i", ['fa', 'fa-caret-up'], {title: getI18nMsg("calc_tips_prev_history")}),
iDown = tag("i", ['fa', 'fa-caret-down'], {title: getI18nMsg("calc_tips_next_history")}),
str = selector.innerText.trim();
input.value =
(str != getI18nMsg("label_jQuery_expression_default") && str != "") ? str : history() ? history() : "";
selector_holder = input.value;
// Store the expression.
history(null, input.value);
input.addEventListener("keydown", function (event) {
var _alt = event['altKey'];
switch (event["keyCode"]) {
case 38: // Last expression
_alt && (input.value = history(current(-1)));
break;
case 40: // Next expression
_alt && (input.value = history(current(1)));
break;
default:
break;
}
});
// 只用来阻止聚焦时产生的鼠标点击事件的传播
input.addEventListener("mouseup", function () {
event.stopPropagation();
});
input.addEventListener("blur", function () {
if (input.value != null && input.value != "") {
input.value = input.value.trim();
}
selector_holder = input.value;
});
// search
iSearch.addEventListener("mouseup", function () {
goSearch.bind(input);
goSearch(function (len) {
if (len > 0) {
detectEvent();
}
});
event.stopPropagation();
});
// Show the prev tag in the result.
iLeft.addEventListener("mouseup", function () {
input.value && go(-1);
event.stopPropagation();
});
// Show the next tag in the result.
iRight.addEventListener("mouseup", function () {
input.value && go(1);
event.stopPropagation();
});
// Execute the expression.
iExecute.addEventListener("mouseup", function () {
execute(input.value);
event.stopPropagation();
});
// The prev expression in the history.
iUp.addEventListener("mouseup", function () {
input.value = history(current(-1));
event.stopPropagation();
});
// The next expression in the history.
iDown.addEventListener("mouseup", function () {
input.value = history(current(1));
event.stopPropagation();
});
me.appendChild(input);
//
resize();
me.appendChild(tag("br"));
me.appendChild(iSearch);
me.appendChild(iLeft);
me.appendChild(iRight);
me.appendChild(iExecute);
me.appendChild(iUp);
me.appendChild(iDown);
me.appendChild(createCalc());
input.addEventListener('focus', function () {
resetOperatorStatus();
});
input.focus();
/**
* Create the dom-like item.
* @param name
* @param clazz
* @param attrs
* @returns {Element}
*/
function tag(name, clazz, attrs) {
var tag = document.createElement(name);
if (typeof clazz == "string") {
tag.classList.add(clazz);
} else if (Array.isArray(clazz)) {
for (var i = 0; i < clazz.length; i++) {
tag.classList.add(clazz[i]);
}
}
if (typeof attrs == "object") {
for (var attr in attrs) {
tag.setAttribute(attr, attrs[attr]);
}
}
return tag;
}
/**
* Show the prev/next tag in the result.
* @param flag
*/
function go(flag) {
if (flag == 1) {
if (window['_s_index'] + 1 < window['_s_length']) {
window['_s_index']++;
}
} else {
window['_s_index']--;
if (window['_s_index'] < 0) {
window['_s_index'] = 0;
}
}
inspectEval(_scrollToTag + "; _scrollToTag(" + window['_s_index'] + ", " + config.opacity + ");",
function (result, isException) {
if (isException) {
warn(getI18nMsg('calc_tips_wrong_expression'));
}
}
);
function _scrollToTag(index, opacity) {
if (!$tag) {
return null;
}
var cover = document.getElementsByClassName("-slct");
for (var i = 0; i < cover.length; i++) {
if (i == index) {
// cover[i].style.backgroundColor = "green";
cover[i].style.opacity = "1";
var xy = $tag.getXY(cover[i]);
window.scrollTo(xy.x, xy.y);
} else {
cover[i].style.opacity = opacity;
}
}
}
}
/**
* Execute the current expression.(Search)
* @returns {number}
*/
function goSearch(callback, toWarn) {
if (!input.value) {
return 0;
}
window['_s_index'] = -1;
window['_s_length'] = 0;
inspectEval("jQuery.fn.jquery", function (result, isException) {
if (!isException) {
inspectEval(" (" + _searchAll + ")(" + input.value.replace(/\;$/, "") + ")",
function (result, isException) {
if (isException) {
warn(getI18nMsg("calc_tips_wrong_expression"));
} else {
history(null, input.value);
document.querySelector(".selector-num").innerHTML =
window['_s_length'] = Number.parseInt(result);
if (typeof callback == "function") {
callback(window['_s_length']);
}
toWarn != false && warn(getI18nMsg("calc_tips_search_success"), 300);
go();
}
}
);
} else {
warn(getI18nMsg("tips_no_jq"), 1000);
}
});
function _searchAll(tags) {
tags = jQuery(tags);
if (!window['$tag']) {
new Tag(tags[0], {
mark: false, // markLine
autoLocate: false,
clear: true
});
}
$tag.cover(tags, true, true);
return tags.length;
}
}
/**
* Execute the expression.
* @param expr
* @param msg
* @returns {null}
*/
function execute(expr, msg) {
if (!expr || !expr.trim()) {
return null;
}
inspectEval('jQuery.fn.jquery', function (result, exception) {
if (!exception) {
inspectEval(expr + "; 1==1", function (res, isEx) {
if (isEx) {
warn(getI18nMsg("calc_tips_wrong_expression"), 500);
_debug && console.debug(isEx);
} else {
history(null, input.value);
warn(msg || getI18nMsg("calc_tips_execute_success"), 300);
}
});
} else {
warn(getI18nMsg("tips_no_jq"));
}
})
}
/**
* 历史记录
* @param index
* @param item
* @returns {*}
*/
function history(index, item) {
var _history = window['_history'];
if (index != null) {
if (index >= 0 && _history.length > 0) {
return _history[index];
}