1 files changed, 44 insertions, 0 deletions
diff --git a/src/components/content-input.js b/src/components/content-input.js
new file mode 100644
index 0000000..6437128
--- /dev/null
+++ b/src/components/content-input.js
@@ -0,0 +1,44 @@
+import messages from '../content/messages';
+
+export default class ContentInputComponent {
+  constructor(target) {
+    this.pressed = {};
+
+    target.addEventListener('keypress', this.onKeyPress.bind(this));
+    target.addEventListener('keydown', this.onKeyDown.bind(this));
+    target.addEventListener('keyup', this.onKeyUp.bind(this));
+  }
+
+  onKeyPress(e) {
+    this.capture(e);
+  }
+
+  onKeyDown(e) {
+    this.capture(e);
+  }
+
+  onKeyUp(e) {
+    this.pressed[e.key] = false;
+  }
+
+  capture(e) {
+    if (this.pressed[e.key]) {
+      return;
+    }
+    this.pressed[e.key] = true;
+
+    if (e.target instanceof HTMLInputElement ||
+      e.target instanceof HTMLTextAreaElement ||
+      e.target instanceof HTMLSelectElement) {
+      if (e.key === 'Escape' && e.target.blur) {
+        e.target.blur();
+      }
+      return;
+    }
+    browser.runtime.sendMessage({
+      type: messages.KEYDOWN,
+      key: e.key,
+      ctrl: e.ctrlKey
+    });
+  }
+}