336 lines
8.2 KiB
JavaScript
336 lines
8.2 KiB
JavaScript
var texteditor = clone(inputpanel, {
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title: "text editor",
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_cursor:0, /* Text cursor: [char,line] */
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get cursor() { return this._cursor; },
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set cursor(x) {
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if (x > this.value.length)
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x = this.value.length;
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if (x < 0)
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x = 0;
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this._cursor = x;
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this.line = this.get_line();
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},
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submit() {},
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line: 0,
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killring: [],
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undos: [],
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startbuffer: "",
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savestate() {
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this.undos.push(this.value.slice());
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},
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popstate() {
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if (this.undos.length === 0) return;
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this.value = this.undos.pop();
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this.cursor = this.cursor;
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},
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copy(start, end) {
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return this.value.slice(start,end);
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},
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delete_line(p) {
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var ls = this.line_start(p);
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var le = this.line_end(p)+1;
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this.cut_span(ls,le);
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this.to_line_start();
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},
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line_blank(p) {
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var ls = this.line_start(p);
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var le = this.line_end(p);
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var line = this.value.slice(ls, le);
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if (line.search(/[^\s]/g) === -1)
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return true;
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else
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return false;
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},
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get_line() {
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var line = 0;
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for (var i = 0; i < this.cursor; i++)
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if (this.value[i] === "\n")
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line++;
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return line;
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},
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start() {
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this.cursor = 0;
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this.startbuffer = this.value.slice();
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},
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get dirty() {
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return this.startbuffer !== this.value;
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},
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gui() {
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GUI.text_cursor(this.value, [100,700],1,this.cursor+1);
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GUI.text("C" + this.cursor + ":::L" + this.line + ":::" + (this.dirty ? "DIRTY" : "CLEAN"), [100,100], 1);
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},
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insert_char(char) {
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this.value = this.value.slice(0,this.cursor) + char + this.value.slice(this.cursor);
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this.cursor++;
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},
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input_enter_pressrep() {
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var white = this.line_starting_whitespace(this.cursor);
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this.insert_char('\n');
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for (var i = 0; i < white; i++)
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this.insert_char(" ");
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},
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input_text(char) {
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if (Keys.ctrl() || Keys.alt()) return;
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this.insert_char(char);
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this.keycb();
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},
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input_backspace_pressrep() {
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this.value = this.value.slice(0,this.cursor-1) + this.value.slice(this.cursor);
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this.cursor--;
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},
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line_starting_whitespace(p) {
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var white = 0;
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var l = this.line_start(p);
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while (this.value[l] === " ") {
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white++;
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l++;
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}
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return white;
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},
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cut_span(start, end) {
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if (end < start) return;
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this.savestate();
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var ret = this.value.slice(start,end);
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this.value = this.value.slice(0,start) + this.value.slice(end);
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if (start > this.cursor)
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return ret;
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this.cursor -= ret.length;
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return ret;
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},
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next_word(pos) {
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var v = this.value.slice(pos+1).search(/[^\w]\w/g);
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if (v === -1) return pos;
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return pos + v + 2;
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},
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prev_word(pos) {
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while (this.value.slice(pos,pos+2).search(/[^\w]\w/g) === -1 && pos > 0)
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pos--;
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return pos+1;
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},
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end_of_word(pos) {
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var l = this.value.slice(pos).search(/\w[^\w]/g);
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return l+pos;
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},
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get inset() {
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return this.cursor - this.value.prev('\n', this.cursor) - 1;
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},
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line_start(p) {
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return this.value.prev('\n', p)+1;
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},
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line_end(p) {
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return this.value.next('\n', p);
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},
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next_line(p) {
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return this.value.next('\n',p)+1;
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},
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prev_line(p) {
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return this.line_start(this.value.prev('\n', p));
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},
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to_line_start() {
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this.cursor = this.value.prev('\n', this.cursor)+1;
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},
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to_line_end() {
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var p = this.value.next('\n', this.cursor);
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if (p === -1)
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this.to_file_end();
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else
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this.cursor = p;
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},
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line_width(pos) {
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var start = this.line_start(pos);
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var end = this.line_end(pos);
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if (end === -1)
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end = this.value.length;
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return end-start;
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},
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to_file_end() { this.cursor = this.value.length; },
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to_file_start() { this.cursor = 0; },
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desired_inset: 0,
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});
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texteditor.inputs = {};
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texteditor.inputs['C-s'] = function() {
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editor.edit_level.script = texteditor.value;
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editor.save_current();
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texteditor.startbuffer = texteditor.value.slice();
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};
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texteditor.inputs['C-s'].doc = "Save script to file.";
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texteditor.inputs['C-u'] = function() { this.popstate(); };
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texteditor.inputs['C-u'].doc = "Undo.";
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texteditor.inputs['C-q'] = function() {
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var ws = this.prev_word(this.cursor);
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var we = this.end_of_word(this.cursor)+1;
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var find = this.copy(ws, we);
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var obj = editor.edit_level.varname2obj(find);
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if (obj) {
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editor.unselect();
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editor.selectlist.push(obj);
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}
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};
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texteditor.inputs['C-q'].doc = "Select object of selected word.";
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texteditor.inputs['C-o'] = function() {
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this.insert_char('\n');
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this.cursor--;
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};
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texteditor.inputs['C-o'].doc = "Insert newline.";
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texteditor.inputs['C-o'].rep = true;
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texteditor.inputs['M-o'] = function() {
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while (this.line_blank(this.next_line(this.cursor)))
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this.delete_line(this.next_line(this.cursor));
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while (this.line_blank(this.prev_line(this.cursor)))
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this.delete_line(this.prev_line(this.cursor));
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};
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texteditor.inputs['M-o'].doc = "Delete surround blank lines.";
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texteditor.inputs['C-d'] = function () { this.value = this.value.slice(0,this.cursor) + this.value.slice(this.cursor+1); };
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texteditor.inputs['C-d'].doc = "Delete character.";
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texteditor.inputs['M-d'] = function() { this.cut_span(this.cursor, this.end_of_word(this.cursor)+1); };
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texteditor.inputs['M-d'].doc = "Delete word.";
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texteditor.inputs['C-a'] = function() {
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this.to_line_start();
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this.desired_inset = this.inset;
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};
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texteditor.inputs['C-a'].doc = "To start of line.";
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texteditor.inputs['C-y'] = function() {
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if (this.killring.length === 0) return;
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this.insert_char(this.killring.pop());
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};
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texteditor.inputs['C-y'].doc = "Insert from killring.";
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texteditor.inputs['C-e'] = function() {
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this.to_line_end();
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this.desired_inset = this.inset;
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};
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texteditor.inputs['C-e'].doc = "To line end.";
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texteditor.inputs['C-k'] = function() {
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if (this.cursor === this.value.length-1) return;
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var killamt = this.value.next('\n', this.cursor) - this.cursor;
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var killed = this.cut_span(this.cursor-1, this.cursor+killamt);
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this.killring.push(killed);
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};
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texteditor.inputs['C-k'].doc = "Kill from cursor to end of line.";
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texteditor.inputs['M-k'] = function() {
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var prevn = this.value.prev('\n', this.cursor);
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var killamt = this.cursor - prevn;
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var killed = this.cut_span(prevn+1, prevn+killamt);
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this.killring.push(killed);
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this.to_line_start();
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};
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texteditor.inputs['M-k'].doc = "Kill entire line the cursor is on.";
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texteditor.inputs['C-b'] = function() {
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this.cursor--;
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this.desired_inset = this.inset;
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};
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texteditor.inputs['C-b'].rep = true;
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texteditor.inputs['M-b'] = function() {
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this.cursor = this.prev_word(this.cursor-2);
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this.desired_inset = this.inset;
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};
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texteditor.inputs['M-b'].rep = true;
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texteditor.inputs['C-f'] = function() {
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this.cursor++;
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this.desired_inset = this.inset;
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};
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texteditor.inputs['C-f'].rep = true;
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texteditor.inputs['M-f'] = function() {
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this.cursor = this.next_word(this.cursor);
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this.desired_inset = this.inset;
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};
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texteditor.inputs['M-f'].rep = true;
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texteditor.inputs['C-p'] = function() {
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if (this.cursor === 0) return;
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this.desired_inset = Math.max(this.desired_inset, this.inset);
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this.cursor = this.prev_line(this.cursor);
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var newlinew = this.line_width(this.cursor);
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this.cursor += Math.min(this.desired_inset, newlinew);
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};
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texteditor.inputs['C-p'].rep = true;
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texteditor.inputs['M-p'] = function() {
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while (this.line_blank(this.cursor))
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this.cursor = this.prev_line(this.cursor);
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while (!this.line_blank(this.cursor))
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this.cursor = this.prev_line(this.cursor);
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};
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texteditor.inputs['M-p'].doc = "Go up to next line with text on it.";
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texteditor.inputs['M-p'].rep = true;
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texteditor.inputs['C-n'] = function() {
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if (this.cursor === this.value.length-1) return;
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if (this.value.next('\n', this.cursor) === -1) {
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this.to_file_end();
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return;
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}
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this.desired_inset = Math.max(this.desired_inset, this.inset);
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this.cursor = this.next_line(this.cursor);
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var newlinew = this.line_width(this.cursor);
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this.cursor += Math.min(this.desired_inset, newlinew);
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};
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texteditor.inputs['C-n'].rep = true;
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texteditor.inputs['M-n'] = function() {
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while (this.line_blank(this.cursor))
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this.cursor = this.next_line(this.cursor);
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while (!this.line_blank(this.cursor))
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this.cursor = this.next_line(this.cursor);
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};
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texteditor.inputs['M-n'].doc = "Go down to next line with text on it.";
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texteditor.inputs['M-n'].rep = true;
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