Support looking up definitions for buttons and inputs.

1 files changed, 59 insertions, 0 deletions

diff --git a/ext/fg/js/source-input.js b/ext/fg/js/source-input.js
new file mode 100644
index 00000000..0bea977b
--- /dev/null
+++ b/ext/fg/js/source-input.js
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2016  Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+class TextSourceInput {
+    constructor(input) {
+        this.input = input;
+        this.length = -1;
+    }
+
+    text() {
+        const text = this.textRaw();
+        return this.length < 0 ? text : text.substring(0, this.length);
+    }
+
+    textRaw() {
+        return this.input.nodeName === 'BUTTON' ? this.input.innerHTML : this.input.value;
+    }
+
+    setLength(length) {
+        this.length = length;
+    }
+
+    containsPoint(point) {
+        const rect = this.getRect();
+        return point.x >= rect.left && point.x <= rect.right;
+    }
+
+    getRect() {
+        return this.input.getBoundingClientRect();
+    }
+
+    select() {
+        // NOP
+    }
+
+    deselect() {
+        // NOP
+    }
+
+    equals(other) {
+        return other.input && other.textRaw() == this.textRaw();
+    }
+}