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MediaWiki:Gadget-EditorAPIs.js

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/**
 * 取自 oldid=45922557
 * hook 維基百科所有編輯器!
 *
 * 用法:
 * mw.hook('editorapi.ready').add(function (editor) {
 *     // 指令...使用editor或window.wikitextEditor
 * });
 * mw.loader.load('https://zh-two.iwiki.icu/w/index.php?title=User:逆襲的天邪鬼/js/EditorAPIs.js&action=raw&ctype=text/javascript');
 *
 * 注意事項:
 * 1. 這是個構件,直接拿去importScript沒有任何意義。
 * 2. 建議不要直接copy內容。請注意原始碼中的TODO,並且根據實際需要來fork。
 * 3. 不支援IE<10,不支援Wikiplus,CodeEditor (AceEditor)不支援selection功能。
 * 4. 不支援VisualEditor的視覺化模式。請注意檢查 wikitextEditor.mode
 * 5. 透過 wikitextEditor.mode 可以檢查目前的編輯器模式。mode值包括:none(不是編輯器,各介面不可用)、wikitext(經典)、wikEd(wikEd編輯器)、wikitext2017(2017原始碼編輯)、codemirror(CodeMirror编辑器)、view(處於「閱讀」模式,實際上沒有編輯器,需要手動開啟)、visual(可識別但不支援,注意!)。
 * 6. 注意VisualEditor的問題:
 *    (1) 因為VisualEditor不會立刻載入,因此使用者使用VE的話 editorapi.ready 會觸發兩遍。
 *    (2) 在使用者切換視覺化編輯與原始碼2017編輯模式時,VE的ready會被再次觸發,因此editorapi.ready也會跟著觸發。
 * 7. window.editorapi = { useViewMode: true };    // 開啟view模式
 */

$(function () {
    'use strict';

    if (window.wikitextEditor) {
        return;
    }
    window.wikitextEditor = { mode: 'none' };

    if (['submit', 'edit'].indexOf(mw.config.get('wgAction')) !== -1) {
        // CodeMirror
        if ($('#wpTextbox1 + .CodeMirror').length > 0) {
            window.wikitextEditor = {
                get mode() {
                    return 'codemirror';
                },
                get text() {
                    return $('#wpTextbox1').val();
                },
                set text(t) {
                    $('#wpTextbox1').val(t);
                },
                get summary() {
                    return $('#wpSummary').val();
                },
                set summary(text) {
                    $('#wpSummary').val(text);
                },
                get minorEdit() {
                    return $('#wpMinoredit').prop('checked');
                },
                set minorEdit(v) {
                    $('#wpMinoredit').prop('checked', v);
                },
                submit: function () {
                    $('#wpSave').click();
                },
                showPreview: function () {
                    $('#wpPreview').click();
                },
                showDiff: function () {
                    $('#wpDiff').click();
                },
                get selectionStart() {
                    return $('#wpTextbox1').textSelection('getCaretPosition');
                },
                set selectionStart(pos) {
                    var end = $('#wpTextbox1').textSelection('getCaretPosition', {startAndEnd:true})[1];
                    $('#wpTextbox1').textSelection('setSelection', {
                        start: pos,
                        end: end
                    });
                },
                get selectionEnd() {
                    return $('#wpTextbox1').textSelection('getCaretPosition', {startAndEnd:true})[1];
                },
                set selectionEnd(pos) {
                    var start = $('#wpTextbox1').textSelection('getCaretPosition');
                    $('#wpTextbox1').textSelection('setSelection', {
                        start: start,
                        end: pos
                    });
                },
                get selectionText() {
                    return $('#wpTextbox1').textSelection('getSelection');
                },
                set selectionText(text) {
                    $('#wpTextbox1').textSelection('encapsulateSelection', {
                        replace: true,
                        peri: text,
                    });
                },
            };
            mw.hook('editorapi.ready').fire(window.wikitextEditor);
        } else if ($('.ace_editor').length > 0) {
			// CodeEditor or AceEditor
			mw.hook('codeEditor.configure').add(function(editor) {
				window.wikitextEditor = {
					get mode() {
						return 'codeeditor';
					},
					get text() {
						return editor.getValue();
					},
					set text(t) {
						editor.setValue(t)
					},
					get summary() {
						return $('#wpSummary').val();
					},
					set summary(text) {
						$('#wpSummary').val(text);
					},
					get minorEdit() {
						return $('#wpMinoredit').prop('checked');
					},
					set minorEdit(v) {
						$('#wpMinoredit').prop('checked', v);
					},
					submit: function () {
						$('#wpSave').click();
					},
					showPreview: function () {
						$('#wpPreview').click();
					},
					showDiff: function () {
						$('#wpDiff').click();
					},
					get selectionStart() {
						throw new Error('NotImplementedError')
					},
					set selectionStart(pos) {
						throw new Error('NotImplementedError')
					},
					get selectionEnd() {
						throw new Error('NotImplementedError')
					},
					set selectionEnd(pos) {
						throw new Error('NotImplementedError')
					},
					get selectionText() {
						return editor.getTextRange();
					},
					set selectionText(text) {
						throw new Error('NotImplementedError')
					},
				};
				mw.hook('editorapi.ready').fire(window.wikitextEditor);
			})
        } else {
            // 傳統原始碼編輯器
            var textbox = document.getElementById('wpTextbox1');
            window.wikitextEditor = {
                get mode() {
                    if (window.wikEd && wikEd.useWikEd) {
                        return 'wikEd';
                    } else {
                        return 'wikitext';
                    }
                },
                get text() {
                    if (window.wikEd && wikEd.useWikEd) {
                        wikEd.UpdateTextarea();
                    }
                    return $('#wpTextbox1').val();
                },
                set text(t) {
                    $('#wpTextbox1').val(t);
                    if (window.wikEd && wikEd.useWikEd) {
                        wikEd.UpdateFrame();
                    }
                },
                get summary() {
                    return $('#wpSummary').val();
                },
                set summary(text) {
                    $('#wpSummary').val(text);
                },
                get minorEdit() {
                    return $('#wpMinoredit').prop('checked');
                },
                set minorEdit(v) {
                    $('#wpMinoredit').prop('checked', v);
                },
                submit: function () {
                    $('#wpSave').click();
                },
                showPreview: function () {
                    $('#wpPreview').click();
                },
                showDiff: function () {
                    $('#wpDiff').click();
                },
                get selectionStart() {
                    // TODO: WikEd支援。後面selectionEnd同。
                    return textbox.selectionStart;
                },
                set selectionStart(pos) {
                    textbox.selectionStart = pos;
                },
                get selectionEnd() {
                    return textbox.selectionEnd;
                },
                set selectionEnd(pos) {
                    textbox.selectionEnd = pos;
                },
                get selectionText() {
                    if (window.wikEd && wikEd.useWikEd) {
                        var obj = {};
                        wikEd.GetText(obj, 'selection, cursor');
                        return obj.selection.plain || '';
                    } else {
                        return textbox.value.substring(textbox.selectionStart, textbox.selectionEnd);
                    }
                },
                set selectionText(text) {
                    if (window.wikEd && wikEd.useWikEd) {
                        wikEd.EditButton(null, null, null, function (obj) {
                            wikEd.GetText(obj, 'selection, cursor');
                            if (obj.selection.plain !== '') {
                                obj.changed = obj.selection;
                            } else {
                                obj.changed = obj.cursor;
                            }
                            obj.changed.plain = text;
                            obj.changed.keepSel = true;
                            return;
                        });
                    } else {
                        textbox.setRangeText(text);
                    }
                },
            };
            mw.hook('editorapi.ready').fire(window.wikitextEditor);
        }
    } else if (window.editorapi && window.editorapi.useViewMode) {
        // 直接在頁面上提交。頁面名稱為目前頁面。
        var submitForm = function (options) {
            $('<form method="post" style="display:none;">')
                .attr('action', mw.util.getUrl(mw.config.get('wgPageName'), {action: 'submit'}))
                .attr('enctype', 'multipart/form-data')
                .append($('<textarea name="wpTextbox1">').val(options.text || ''),
                    $('<input name="wpSummary">').val(options.summary || ''),
                    '<input name="wpMinoredit" type="checkbox" value="1"' + (options.minorEdit ? ' checked="checked"' : '') + '>',
                    '<input name="format" value="text/x-wiki">',
                    '<input name="wpAutoSummary" value="hashhashhashhash">',    // 防止「未填寫摘要」的提示
                    '<input name="model" value="wikitext">',
                    '<input name="wpEditToken" value="' + mw.user.tokens.get('csrfToken') + '">',
                    '<input name="wpUltimateParam" value="1">',
                    '<input name="' + (options.button || 'wpSave') + '" type="submit" value="1">',
                    '<input name="mode" value="text">')
                .appendTo('body').submit();
        };

        var e = {
            mode: 'view',
            text: null,    // 稍後會嘗試取得目前頁面的原始碼
            summary: '',
            minorEdit: false,
            submit: function () {
                submitForm({
                    text: this.text,
                    summary: this.summary,
                    minorEdit: this.minorEdit,
                    button: 'wpSave',
                });
            },
            showPreview: function () {
                submitForm({
                    text: this.text,
                    summary: this.summary,
                    minorEdit: this.minorEdit,
                    button: 'wpPreview',
                });
            },
            showDiff: function () {
                submitForm({
                    text: this.text,
                    summary: this.summary,
                    minorEdit: this.minorEdit,
                    button: 'wpDiff',
                });
            },
            selectionStart: 0,
            selectionEnd: 0,
            get selectionText() {
                return this.text.substring(this.selectionStart, this.selectionEnd);
            },
            set selectionText(text) {
                this.text = this.text.substring(0, this.selectionStart) + text + this.text.substring(this.selectionEnd);
            },
        };

        // 取得頁面內容
        $.ajax({
            url: mw.util.wikiScript('api'),
            data: {
                action: 'query',
                prop: 'revisions',
                rvprop: 'content',
                titles: mw.config.get('wgPageName'),
                format: 'json',
            },
            dataType: 'json',
            type: 'POST',
            success: function (data) {
                if (data.query) {
                    var pages = data.query.pages;
                    for (var pageid in pages) {
                        var page = pages[pageid];
                        if (e.text === null && !('missing' in page)) {
                            e.text = page.revisions[0]['*'];
                        }
                    }
                }
            }
        });

        window.wikitextEditor = e;
        mw.hook('editorapi.ready').fire(window.wikitextEditor);
    }

    mw.hook('mobileFrontend.editorOpened').add(function () {
    	var textbox = document.getElementById('wikitext-editor');
    	window.wikitextEditor = {
    		get mode() {
    			return 'mobileFrontend';
    		},
    		get text() {
    			return $('#wikitext-editor').val();
    		},
    		set text(t) {
    			$('#wikitext-editor').val(t);
    		},
    		get summary() {
    			return $('textarea.summary').val();
    		},
    		set summary(text) {
    			$('textarea.summary').val(text);
    		},
    		get minorEdit() {
    			return;
    		},
    		set minorEdit(v) {
    			return;
    		},
    		submit: function () {
    			$('button.continue').click();
    			$('button.submit').click();
    		},
    		showPreview: function() {
    			$('button.continue').click();
    		},
    		showDiff: function() {
    			return;
    		},
    		get selectionStart() {
    			return textbox.selectionStart;
    		},
    		set selectionStart(pos) {
    			textbox.selectionStart = pos;
    		},
    		get selectionEnd() {
    			return textbox.selectionEnd;
    		},
    		set selectionEnd(pos) {
    			textbox.selectionEnd = pos;
    		},
    		get selectionText() {
    			return textbox.value.substring(textbox.selectionStart, textbox.selectionEnd);
    		},
    		set selectionText(text) {
    			textbox.setRangeText(text);
    		}
    	};
    	mw.hook('editorapi.ready').fire(window.wikitextEditor);
    });

    (function () {
        var data2text = function (data) {
            var r = [];
            if (data) {
                for (var i=0; i<data.length; i++) {
                    if (typeof data[i] === 'string') {
                        r.push(data[i]);
                    } else if (data[i] && data[i].type === '/paragraph') {
                        r.push('\n');
                    }
                }
                return r.join('');
            } else {
                return '';
            }
        };

        var pendingSummary = '';
        var pendingMinoredit = false;
        var pendingAction = '';
        var addedHook = false;

        mw.hook('ve.activationComplete').add(function () {
            // 視覺化編輯器。注意,切換視覺化與原始碼2017模式也會執行
            var surface = ve.init.target.getSurface();
            var surfaceModel = surface.getModel();

            var processed = false;
            var addHook = function () {
                if (!addedHook) {
                    mw.hook('ve.saveDialog.stateChanged').add(function() {
                        if (ve.init.target.saveDialog && !processed) {
                            var dialog = ve.init.target.saveDialog;
                            dialog.setEditSummary(pendingSummary || '');
                            dialog.checkboxesByName.wpMinoredit.setSelected(pendingMinoredit && true);
                            // 另一個叫做wpWatchthis

                            setTimeout(function () {
                                if (!ve.init.target.saveDialog) { return; }
                                switch (pendingAction) {
                                    case 'submit':
                                        dialog.executeAction('save');
                                        break;
                                    case 'diff':
                                        dialog.executeAction('review');
                                        break;
                                    case 'preview':
                                        dialog.executeAction('preview');
                                        break;
                                }
                            }, 500);
                            processed = true;
                        }
                    });
                    addedHook = true;
                }
            };

            // FIXME: HACK
            var keepSel = false;
            var lastSel;

            window.wikitextEditor = {
                get mode() {
                    if (surface.getMode() === 'visual') {
                        return 'visual';
                    } else {
                        return 'wikitext2017';
                    }
                },
                get text() {
                    // TODO: 視覺化模式支援
                    if (surface.getMode() === 'visual') {
                        return null;
                    }
                    var data = surfaceModel.documentModel.data;
                    if (data && data.data) {
                        return data2text(data.data);
                    } else {
                        return '';
                    }
                },
                set text(text) {
                    if (surface.getMode() === 'visual') {
                        return;
                    }
                    var rangeToRemove = new ve.Range(0, surfaceModel.documentModel.getLength());
                    var fragment = surfaceModel.getLinearFragment(rangeToRemove);
                    fragment.insertContent(text);
                },
                get summary() {
                    if (ve.init.target.saveDialog) {
                        return ve.init.target.saveDialog.editSummaryInput.$input.val();
                    } else {
                        return pendingSummary || '';
                    }
                },
                set summary(text) {
                    if (ve.init.target.saveDialog) {
                        ve.init.target.saveDialog.setEditSummary(text);
                    } else {
                        pendingSummary = text;
                        addHook();
                    }
                },
                get minorEdit() {
                    if (ve.init.target.saveDialog) {
                        return ve.init.target.saveDialog.checkboxesByName.wpMinoredit.selected;
                    } else {
                        return pendingMinoredit && true;
                    }
                },
                set minorEdit(v) {
                    if (ve.init.target.saveDialog) {
                        ve.init.target.saveDialog.checkboxesByName.wpMinoredit.setSelected(v && true);
                    } else {
                        pendingMinoredit = v && true;
                        addHook();
                    }
                },
                submit: function () {
                    // TODO:改成聰明的做法
                    // TODO:如果沒對文字做過修改,對話方塊是叫不出來的
                    if (ve.init.target.saveDialog) {
                        if (!ve.init.target.saveDialog.visible) {
                            ve.init.target.saveDialog.open().then(function() {
                                ve.init.target.saveDialog.executeAction('save');
                            });
                        } else {
                            ve.init.target.saveDialog.executeAction('save');
                        }
                    } else {
                        pendingAction = 'submit';
                        addHook();
                        ve.init.target.toolbarSaveButton.emit('click');
                    }
                },
                showPreview: function () {
                    if (ve.init.target.saveDialog) {
                        if (!ve.init.target.saveDialog.visible) {
                            ve.init.target.saveDialog.open().then(function() {
                                ve.init.target.saveDialog.executeAction('preview');
                            });
                        } else {
                            ve.init.target.saveDialog.executeAction('preview');
                        }
                    } else {
                        pendingAction = 'preview';
                        addHook();
                        ve.init.target.toolbarSaveButton.emit('click');
                    }
                },
                showDiff: function () {
                    if (ve.init.target.saveDialog) {
                        if (!ve.init.target.saveDialog.visible) {
                            ve.init.target.saveDialog.open().then(function() {
                                ve.init.target.saveDialog.executeAction('review');
                            });
                        } else {
                            ve.init.target.saveDialog.executeAction('review');
                        }
                    } else {
                        pendingAction = 'diff';
                        addHook();
                        ve.init.target.toolbarSaveButton.emit('click');
                    }
                },
                get selectionStart() {
                    // 注意:
                    // 1. 此位置是編輯框的位置,而非文字位置。後面selectionEnd同。
                    // 2. 編輯器失去焦點時,選中區域會變為NullSelection!
                    var selection = surfaceModel.getSelection();
                    if (selection instanceof ve.dm.LinearSelection) {
                        return selection.getRange().start;
                    } else {
                        return null;
                    }
                },
                set selectionStart(pos) {
                    var selection = surfaceModel.getSelection();
                    if (selection instanceof ve.dm.LinearSelection) {
                        surfaceModel.setLinearSelection(new ve.Range(pos, selection.getRange().end));
                    }
                },
                get selectionEnd() {
                    var selection = surfaceModel.getSelection();
                    if (selection instanceof ve.dm.LinearSelection) {
                        return selection.getRange().end;
                    } else {
                        return null;
                    }
                },
                set selectionEnd(pos) {
                    var selection = keepSel ? lastSel : surfaceModel.getSelection();
                    if (selection instanceof ve.dm.LinearSelection) {
                        surfaceModel.setLinearSelection(new ve.Range(selection.getRange().start, pos));
                    }
                },
                get selectionText() {
                    // 注意:編輯器失去焦點時,選中區域會變為NullSelection!
                    var selection = surfaceModel.getSelection();
                    if (selection instanceof ve.dm.LinearSelection) {
                        var fragment = surfaceModel.getLinearFragment(selection.getRange());
                        return data2text(fragment.getData());
                    } else {
                        return '';
                    }
                },
                set selectionText(text) {
                    var selection = keepSel ? lastSel : surfaceModel.getSelection();
                    if (selection instanceof ve.dm.LinearSelection) {
                        var fragment = surfaceModel.getLinearFragment(selection.getRange());
                        fragment.insertContent(text);
                    }
                },
                set keepSelection(v) {
                    // FIXME: 這裡是Hack,因為編輯器失去焦點時會同時失去選區,
                    // 不處理的話在$.dialog()之後會無法取得選區內容
                    if (v) {
                        keepSel = true;
                        lastSel = surfaceModel.getSelection();
                    } else {
                        keepSel = false;
                    }
                }
            };
            mw.hook('editorapi.ready').fire(window.wikitextEditor);
        });
    })();

});