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Modernized help UI prototype: Refactor JavaScript code
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Refactor JavaScript code for better readability. No functional changes.

See also #735 (review)
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@howlger @iloveeclipse
howlger authored and iloveeclipse committed May 8, 2024
1 parent a1466b8 commit 6a0853d
Showing 1 changed file with 62 additions and 55 deletions.
117 changes: 62 additions & 55 deletions ua/org.eclipse.help.webapp/m/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,11 @@
var SEARCH_RESULTS_INDEXING_PATTERN = new RegExp('[\'"]divProgress[\'"]\\s+STYLE\\s*=\\s*[\'"]\\s*width\\s*:\\s*([\\d]+)\\s*px', 'i');
var SEARCH_RESULTS_PATTERN = new RegExp('<tr[^<]*<td[^<]*<img[^<]*</td[^<]*<td[^<]*<a\\s+(?:(?!href)(?!title)[\\w\\-]+\\s*=\\s*(?:(?:\'[^\']*\')|(?:"[^"]*"))\\s+)*(href|title)\\s*=\\s*"([^"]*)"\\s+(?:(?!href)(?!title)[\\w\\-]+\\s*=\\s*(?:(?:\'[^\']*\')|(?:"[^"]*"))\\s+)*(href|title)\\s*=\\s*"([^"]*)"[^>]*>([^<]*)</a>(?:(?:(?!<[/]?tr)[\\s\\S])*</tr\\s*>\\s*<tr(?:(?!</tr)(?!class="location">)[\\s\\S])*class="location">((?:(?!</div)[\\s\\S])*))?(?:(?:(?!</tr)(?!\\sclass=["\']description["\'])[\\s\\S])*</tr){1,2}(?:(?!</tr)(?!\\sclass=["\']description["\'])[\\s\\S])*\\sclass=["\']description["\'][^>]*>([^<]*)', 'gi');
var SEARCH_RESULTS_BREADCRUMB_SNIPPET_PATTERN = new RegExp('<a\\s+href="([^"]+)">([^<]+)</a>', 'gi');
var SEARCH_SCOPE_LEVEL_ALL = 0;
var SEARCH_SCOPE_LEVEL_BOOK = 1;
var SEARCH_SCOPE_LEVEL_CHAPTER = 2;
var SEARCH_SCOPE_LEVEL_CUSTOM = 3;
var SEARCH_SCOPE_LEVEL_SHOW_COMMAND = 4;
var SEARCH_SCOPE_CURRENT_PATTERN = new RegExp('<div\\s+id\\s*=\\s*"scope"\\s*>([^<]*)<');
var SEARCH_SCOPE_ALL_PATTERN = new RegExp('<a\\s+(?:(?!title)[\\w\\-]+\\s*=\\s*(?:(?:\'[^\']*\')|(?:"[^"]*"))\\s+)*title\\s*=\\s*"([^"]*)"', 'gi');
var SEARCH_SCOPE_NAME_PATTERN = new RegExp('<input\\s+type\\s*=\\s*["\']text["\']\\s+(?:(?!value)[\\w\\-]+\\s*=\\s*(?:(?:\'[^\']*\')|(?:"[^"]*"))\\s+)*value\\s*=\\s*\'([^\']*)\'', 'i');
Expand All @@ -48,6 +53,7 @@
var SEARCH_DELAY_IN_MILLISECOND = 99;
var SEARCH_CACHE = {fi: -1, f: [], ti: -1, t: [] };


// TODO integration: the browser should not have to calculate the following variables itself;
// only "init()" should be called instead
var embeddedMode = 1;
Expand All @@ -60,7 +66,7 @@
var setSearchScope;
var setSearchFieldValue;
var currentSearch = {};
var searchScope = {l: 0, s: '', t: 0};
var searchScope = {level: SEARCH_SCOPE_LEVEL_ALL, customIndex: 0, customName: ''};

addEvent(window, 'load', function() {

Expand Down Expand Up @@ -99,20 +105,20 @@
var scopeName = decodeHtml(match[1]);
if (scopeName.substring(0, 1) == '\u200B') {
if (scopeName.length < 3) {
searchScope.l = scopeName.length;
searchScope.level = scopeName.length;
break;
} else {
searchScope.l = 4;
searchScope.t = scopeName.length - 3;
searchScope.level = SEARCH_SCOPE_LEVEL_CUSTOM;
searchScope.customIndex = scopeName.length - 3;
continue;
}
}
if (searchScope.i && searchScope.i == scopeName) {
searchScope.l = 4;
searchScope.s = scopeName;
searchScope.level = SEARCH_SCOPE_LEVEL_CUSTOM;
searchScope.customName = scopeName;
break;
} else if (searchScope.l == 4 && searchScope.t == scopeIndex) {
searchScope.s = scopeName;
} else if (searchScope.level == SEARCH_SCOPE_LEVEL_CUSTOM && searchScope.customIndex == scopeIndex) {
searchScope.customName = scopeName;
}
scopeIndex++;
}
Expand Down Expand Up @@ -254,7 +260,7 @@
getElementById('c').style.display = show || (searchPage && searchPage.o) ? 'none' : 'block';
if (searchPage) searchPage.style.display = searchPage.o && !show ? 'block' : 'none';
if (!show) return;
function showScopesPage(query, scopeNr) {
function showScopesPage(query, scopeIndex) {
scopesPage.innerHTML = '';

// "x" button
Expand Down Expand Up @@ -353,7 +359,7 @@
+ '&workingSet='
+ encodeURIComponent(nameInput.value)
+ getHrefs());
setSearchScope([4, scopeName, scopeNr]);
setSearchScope([SEARCH_SCOPE_LEVEL_CUSTOM, scopeIndex, scopeName]);
});
}
createButton(scopesPage, '<%js:scopes_scope_cancel_button_label%>', '<%js:scopes_scope_cancel_button_description%>', function() { showScopesPage(); });
Expand Down Expand Up @@ -944,7 +950,7 @@

var booksButton = createElement(scopeButtonWrapper, 'button', 's');
setAttribute(booksButton, 'type', 'button');
booksButtonText = createElement(booksButton, 'span');
var booksButtonText = createElement(booksButton, 'span');
var dropDownHandle = createElement(booksButton, 'span', 'de');
setInnerHtml(dropDownHandle, TREE_HANDLE);
var booksDropDown = createElement(scopeButtonWrapper, 0, 'u');
Expand All @@ -969,12 +975,12 @@
currentChapter = tocLi.n.t;
}
}
menuItems.push(createElement(booksDropDownUl, 'li', searchScope.l == 0 ? 'x': 0, '<%js:scope_none_label%>'));
dataItems.push([0]);
menuItems.push(createElement(booksDropDownUl, 'li', searchScope.l == 1 ? 'x': 0, '<%js:scope_book_label%>' + (currentBook ? ': ' + currentBook : '')));
dataItems.push([1]);
menuItems.push(createElement(booksDropDownUl, 'li', searchScope.l == 2 ? 'x': 0, '<%js:scope_chapter_label%>' + (currentChapter ? ': ' + currentChapter : '')));
dataItems.push([2]);
menuItems.push(createElement(booksDropDownUl, 'li', searchScope.level == SEARCH_SCOPE_LEVEL_ALL ? 'x': '', '<%js:scope_none_label%>'));
dataItems.push([SEARCH_SCOPE_LEVEL_ALL]);
menuItems.push(createElement(booksDropDownUl, 'li', searchScope.level == SEARCH_SCOPE_LEVEL_BOOK ? 'x': '', '<%js:scope_book_label%>' + (currentBook ? ': ' + currentBook : '')));
dataItems.push([SEARCH_SCOPE_LEVEL_BOOK]);
menuItems.push(createElement(booksDropDownUl, 'li', searchScope.level == SEARCH_SCOPE_LEVEL_CHAPTER ? 'x': '', '<%js:scope_chapter_label%>' + (currentChapter ? ': ' + currentChapter : '')));
dataItems.push([SEARCH_SCOPE_LEVEL_CHAPTER]);
remoteRequest(BASE_URL + 'advanced/workingSetManager.jsp?t=' + Date.now(), function(menuItems, dataItems) {
return function(responseText) {
var delimiter = 'l ';
Expand All @@ -983,14 +989,14 @@
for (var match; (match = SEARCH_SCOPE_ALL_PATTERN.exec(responseText)) != null;) {
var label = decodeHtml(match[1]);
if (label.substring(0, 1) == '\u200B') continue;
var className = delimiter + (searchScope.l == 4 && searchScope.s == label ? 'x' : '');
var className = delimiter + (searchScope.level == SEARCH_SCOPE_LEVEL_CUSTOM && searchScope.customName == label ? 'x' : '');
menuItems.push(createElement(booksDropDownUl, 'li', className, label));
delimiter = '';
dataItems.push([4, label, scopeIndex]);
dataItems.push([SEARCH_SCOPE_LEVEL_CUSTOM, label, scopeIndex]);
scopeIndex++;
}
menuItems.push(createElement(booksDropDownUl, 'li', 'l y', '<%js:scope_manage_label%>'));
dataItems.push([5]);
dataItems.push([SEARCH_SCOPE_LEVEL_SHOW_COMMAND]);
toMenu(booksButton, menuItems, dataItems, setSearchScope);
}
}(menuItems, dataItems));
Expand Down Expand Up @@ -1022,32 +1028,33 @@
// booksDropDown.hasFocus = false;
// setTimeout(function() {if (!booksDropDown.hasFocus) booksDropDown.style.display = 'none'}, 200);
// });
if (!embeddedMode && BOOK_SCOPE_BY_DEFAULT && searchScope.l == 0 && getCookie(BOOK_SCOPE_COOKIE) != 'init') {
if (!embeddedMode && BOOK_SCOPE_BY_DEFAULT && searchScope.level == SEARCH_SCOPE_LEVEL_ALL && getCookie(BOOK_SCOPE_COOKIE) != 'init') {
setCookie(BOOK_SCOPE_COOKIE, 'init');
setTimeout(function(){ if(setSearchScope) setSearchScope([1]); }, 420);
setTimeout(function(){ if(setSearchScope) setSearchScope([SEARCH_SCOPE_LEVEL_BOOK]); }, 420);
} else {
updateScopeButtonLabel();
}

setSearchScope = function(scopeData) {
level = scopeData[0];
booksDropDown.s();
scopeOverlay.o();
if (scopeData[0] == 5) {
if (level == SEARCH_SCOPE_LEVEL_SHOW_COMMAND) {
scopesPage.s(1);
return;
}
if (searchScope.l != scopeData[0]) {
if (searchScope.level != level) {
var scopeToRemove;
if (searchScope.l == 1 || searchScope.l == 2 || searchScope.l == 4) {
scopeToRemove = '%E2%80%8B' + (searchScope.l > 1 ? '%E2%80%8B' : '');
for (var i = 0; searchScope.l == 4 && i <= searchScope.t; i++) {
if (searchScope.level == SEARCH_SCOPE_LEVEL_BOOK || searchScope.level == SEARCH_SCOPE_LEVEL_CHAPTER || searchScope.level == SEARCH_SCOPE_LEVEL_CUSTOM) {
scopeToRemove = '%E2%80%8B' + (level != SEARCH_SCOPE_LEVEL_ALL && level != SEARCH_SCOPE_LEVEL_BOOK ? '%E2%80%8B' : '');
for (var i = 0; searchScope.level == SEARCH_SCOPE_LEVEL_CUSTOM && i <= searchScope.customIndex; i++) {
scopeToRemove += '%E2%80%8B';
}
}
var scopeToAdd;
if (scopeData[0] == 1 || scopeData[0] == 2 || scopeData[0] == 4) {
scopeToAdd = '%E2%80%8B' + (scopeData[0] > 1 ? '%E2%80%8B' : '');
for (var i = 0; scopeData[0] == 4 && i <= scopeData[2]; i++) {
if (level == SEARCH_SCOPE_LEVEL_BOOK || level == SEARCH_SCOPE_LEVEL_CHAPTER || level == SEARCH_SCOPE_LEVEL_CUSTOM) {
scopeToAdd = '%E2%80%8B' + (level != SEARCH_SCOPE_LEVEL_ALL && level != SEARCH_SCOPE_LEVEL_BOOK ? '%E2%80%8B' : '');
for (var i = 0; level == SEARCH_SCOPE_LEVEL_CUSTOM && i <= scopeData[2]; i++) {
scopeToAdd += '%E2%80%8B';
}
}
Expand All @@ -1061,9 +1068,9 @@
+ '&t=' + Date.now());
}
}
searchScope.l = scopeData[0];
searchScope.s = searchScope.l == 4 ? scopeData[1] : 0;
searchScope.t = searchScope.l == 4 ? scopeData[2] : 0;
searchScope.level = level;
searchScope.customName = searchScope.level == SEARCH_SCOPE_LEVEL_CUSTOM ? scopeData[1] : '';
searchScope.customIndex = searchScope.level == SEARCH_SCOPE_LEVEL_CUSTOM ? customIndex = scopeData[2] : 0;
updateScopeButtonLabel();
}
updateScopeByToc = function(li) {
Expand All @@ -1072,16 +1079,16 @@
}
function updateScopeButtonLabel() {
setInnerHtml(booksButtonText, '');
if (searchScope.l == 0 || (searchScope.l < 3 && !currentTocLi)) return;
if (searchScope.level == SEARCH_SCOPE_LEVEL_ALL || (searchScope.level != SEARCH_SCOPE_LEVEL_CUSTOM && !currentTocLi)) return;
var newButtonlabel;
for (var tocLi = currentTocLi; searchScope.l < 3 && tocLi && tocLi.n; tocLi = tocLi.p) {
if (!tocLi.n.path || (searchScope.l == 2 && !tocLi.n.l)) {
for (var tocLi = currentTocLi; searchScope.level != SEARCH_SCOPE_LEVEL_CUSTOM && tocLi && tocLi.n; tocLi = tocLi.p) {
if (!tocLi.n.path || (searchScope.level == SEARCH_SCOPE_LEVEL_CHAPTER && !tocLi.n.l)) {
newButtonlabel = tocLi.n.t;
break;
}
}
if (searchScope.l == 4) {
newButtonlabel = searchScope.s;
if (searchScope.level == SEARCH_SCOPE_LEVEL_CUSTOM) {
newButtonlabel = searchScope.customName;
}
if (newButtonlabel) {
booksButtonText.appendChild(document.createTextNode(BOOK_NAME_SHORTENER(newButtonlabel)));
Expand Down Expand Up @@ -1170,17 +1177,17 @@
}

var tocScope = currentTocLi ? currentTocLi.n : currentTocLi;
for (var tocLi = currentTocLi; searchScope.l < 3 && tocLi && tocLi.n; tocLi = tocLi.p) {
if (!tocLi.n.path || (searchScope.l == 2 && !tocLi.n.l)) {
for (var tocLi = currentTocLi; searchScope.level != SEARCH_SCOPE_LEVEL_CUSTOM && tocLi && tocLi.n; tocLi = tocLi.p) {
if (!tocLi.n.path || (searchScope.level == SEARCH_SCOPE_LEVEL_CHAPTER && !tocLi.n.l)) {
tocScope = tocLi.n;
break;
}
}
var query = searchWord.length
? ( encodeURIComponent(searchWord)
+ ((searchScope.l == 1 || searchScope.l == 2) && tocScope && tocScope.toc ? '&toc=' + encodeURIComponent(tocScope.toc) : '')
+ (searchScope.l == 2 && tocScope && tocScope.path ? '&path=' + tocScope.path : '')
+ (searchScope.l == 4 && searchScope.s ? '&scope=' + encodeURIComponent(searchScope.s) : ''))
+ ((searchScope.level == SEARCH_SCOPE_LEVEL_BOOK || searchScope.level == SEARCH_SCOPE_LEVEL_CHAPTER) && tocScope && tocScope.toc ? '&toc=' + encodeURIComponent(tocScope.toc) : '')
+ (searchScope.level == SEARCH_SCOPE_LEVEL_CHAPTER && tocScope && tocScope.path ? '&path=' + tocScope.path : '')
+ (searchScope.level == SEARCH_SCOPE_LEVEL_CUSTOM && searchScope.customName ? '&scope=' + encodeURIComponent(searchScope.customName) : ''))
: '';
var url = SEARCH_BASE_URL
+ query.replace(/(\&|$)/, (fullSearch ? '' : '*') + '$1')
Expand Down Expand Up @@ -1246,13 +1253,13 @@
return;
}
var currentSearchScope = {
/* level */ l: searchScope.l,
/* (custom) scope name */ s: searchScope.s,
/* path */ p: 0
level: searchScope.level,
customName: searchScope.customName,
/* path */ p: 0
};
if (searchScope.l > 0 && searchScope.l < 3 && currentTocLi) {
if ((searchScope.level == SEARCH_SCOPE_LEVEL_BOOK || searchScope.level == SEARCH_SCOPE_LEVEL_CHAPTER) && currentTocLi) {
currentSearchScope.p = [currentTocLi.n];
for (var parentLi = currentTocLi.p; searchScope.l > 1 && parentLi && parentLi.n; parentLi = parentLi.p) {
for (var parentLi = currentTocLi.p; searchScope.level == SEARCH_SCOPE_LEVEL_CHAPTER && parentLi && parentLi.n; parentLi = parentLi.p) {
currentSearchScope.p.unshift(parentLi.n);
}
}
Expand Down Expand Up @@ -1291,9 +1298,9 @@
}
}
var currentSearchScope = {
/* level */ l: scope ? 4 : (toc ? (path ? 2 : 1) : 0),
/* (custom) scope name */ s: scope,
/* path */ p: 0
level: scope ? SEARCH_SCOPE_LEVEL_CUSTOM : (toc ? (path ? SEARCH_SCOPE_LEVEL_CHAPTER : SEARCH_SCOPE_LEVEL_BOOK) : SEARCH_SCOPE_LEVEL_ALL),
customName: scope,
/* path */ p: 0
};
var scopeFound = !toc;
if (toc && currentTocLi && currentTocLi.n) {
Expand Down Expand Up @@ -1445,7 +1452,7 @@
stopPropagation(e);
}

var searchScopeLabel = searchScope.l > 3 ? searchScope.s : '';
var searchScopeLabel = searchScope.level == SEARCH_SCOPE_LEVEL_CUSTOM ? searchScope.customName : '';
if (searchScope.p) {
for (var i = 0; i < searchScope.p.length; i++) {
if (i > 0) {
Expand All @@ -1457,7 +1464,7 @@
var parentElement = fullSearch ? searchPage : proposals;
setInnerHtml(parentElement, '');
parentElement.q = query;
parentElement.l = (searchScope.l > 0 ? '<%js:search_scoped_title%>' : '<%js:search_title%>').replace('{0}', searchWord).replace('{1}', searchScopeLabel);
parentElement.l = (searchScope.level != SEARCH_SCOPE_LEVEL_ALL ? '<%js:search_scoped_title%>' : '<%js:search_title%>').replace('{0}', searchWord).replace('{1}', searchScopeLabel);
if (fullSearch) {
document.title = searchPage.l + ' - ' + title;

Expand Down Expand Up @@ -1533,7 +1540,7 @@
var labelText = '';
if (isRoot) {
checkbox.style.display = 'none';
labelText = (searchScope && searchScope.l > 0
labelText = (searchScope && searchScope.level != SEARCH_SCOPE_LEVEL_ALL
? '<%js:searchpage_heading_scoped%>'
: '<%js:searchpage_heading%>') + ' ';
} else {
Expand All @@ -1549,7 +1556,7 @@
}
}
var label = createElement(checkboxWithLabel, 'span', node.isNode ? 0 : 't', labelText + ' ');
if (isRoot && searchScope && searchScope.l > 0 ) {
if (isRoot && searchScope && searchScope.level != SEARCH_SCOPE_LEVEL_ALL ) {
createElement(label, 'span', 'tl', searchScopeLabel + ' ');
}
createElement(label, 'span', 'count', checkbox.numberOfResults);
Expand Down

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