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Greg Pomerantz 2026-06-03 22:51:22 -04:00
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doc/touch.md
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@ -11,8 +11,8 @@ Pad avoids high-level widgets and uses the following low-level Gioui ops and eve
| `gesture.Click.Add` | `gesture.ClickEvent` | Tap detection for UI elements (buttons, status bar labels, icons). |
| `pointer.InputOp` | `pointer.Event` | Editor hit-region. Captures `Press`, `Release`, `Move`, `Drag`, `Scroll` for cursor movement, selection, scrolling. |
| `key.InputOp` | `key.Event` | Enables keyboard focus. Captures `Edit` (text insertion), `Press` (Backspace, Enter, Arrows). |
| `key.FocusOp` | — | Requests keyboard focus for the active element. |
| `key.SoftKeyboardOp` | — | Explicitly shows/hides the Android soft keyboard. |
| `gtx.Execute(key.FocusCmd` | — | Requests keyboard focus for the active element. |
| `gtx.Execute(key.SoftKeyboardCmd)` | — | Explicitly shows/hides the Android soft keyboard. |
### 1.1 Op/Event Flow
@ -169,12 +169,12 @@ The `TextField` element must be "focused" to receive keyboard events. Focus is a
### 5.1 Focus Acquisition
1. **Tap on Editor**: User taps the `TextField` region. Main goroutine sends `pointer.Event` (Type: `Press`) to Logic.
2. **Focus Request**: Logic sets `focused = true` and computes a frame with `key.FocusOp` and `key.SoftKeyboardOp(true)`.
2. **Focus Request**: Logic sets `focused = true` and computes a frame with `gtx.Execute(key.FocusCmd` and `gtx.Execute(key.SoftKeyboardCmd{Show: true}`.
3. **Keyboard Appears**: Gioui shows the Android soft keyboard. Subsequent `w.Event()` calls return `key.Event`.
### 5.2 Focus Loss
1. **Tap Outside Editor**: User taps a non-editor region (e.g., status bar, directory browser). Logic sets `focused = false` and computes a frame with `key.SoftKeyboardOp(false)`.
1. **Tap Outside Editor**: User taps a non-editor region (e.g., status bar, directory browser). Logic sets `focused = false` and computes a frame with `gtx.Execute(key.SoftKeyboardOp{Show: false})`.
2. **Keyboard Disappears**: Gioui hides the soft keyboard.
### 5.3 Key Events
@ -387,12 +387,12 @@ The Search button toggles the search bar visible/invisible.
3. If `search_active` is true:
- Show `SearchBar` element below the StatusBar.
- Set focus to the search bar's text field.
- Show the soft keyboard (`key.SoftKeyboardOp(true)`).
- Show the soft keyboard (`gtx.Execute(key.SoftKeyboardCmd{Show: true}`).
4. If `search_active` is false:
- Hide `SearchBar` element.
- Clear search query.
- Remove focus from search bar.
- Hide soft keyboard (`key.SoftKeyboardOp(false)`).
- Hide soft keyboard (`gtx.Execute(key.SoftKeyboardCmd{Show: false}`).
5. Logic produces a new frame.
The Search button is always visible in the StatusBar (unlike Cut/Copy/Paste which are conditional). It serves as the primary way to activate search on Android (where Ctrl+F may not be available).