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I have successfully implemented the disable pinch zoom functionality for the Wails WebView2 project. Here's what was implemented:
### Changes Made:
1. **Added PinchZoom Capability** (`pkg/edge/capabilities.go:144`)
- Added `PinchZoom = Capability("87.0.664.75")` to define the minimum WebView2 runtime version required
2. **Added Pinch Zoom Control Methods** (`pkg/edge/chromium.go:665-695`)
- `GetIsPinchZoomEnabled() (bool, error)` - Get current pinch zoom setting
- `PutIsPinchZoomEnabled(enabled bool) error` - Set pinch zoom setting
3. **Added Configuration Field** (`pkg/edge/chromium.go:79`)
- `PinchZoomEnabled *bool` - Optional field to configure pinch zoom during initialization
4. **Automatic Configuration Application** (`pkg/edge/chromium.go:390-396`)
- Added logic to automatically apply the pinch zoom setting when the WebView2 is initialized
5. **Created Usage Example** (`examples/disable_pinch_zoom.go`)
- Comprehensive example showing three ways to control pinch zoom
### Usage Options:
**Method 1: Configure during initialization (Recommended)**
```go
chromium := edge.NewChromium()
pinchZoomDisabled := false
chromium.PinchZoomEnabled = &pinchZoomDisabled
// Setting will be automatically applied when Embed() is called
```
**Method 2: Runtime control**
```go
err := chromium.PutIsPinchZoomEnabled(false)
```
**Method 3: Check current setting**
```go
enabled, err := chromium.GetIsPinchZoomEnabled()
```
### Features:
- **Capability Check**: Automatically checks if the WebView2 runtime supports pinch zoom control
- **Error Handling**: Proper error handling for unsupported versions
- **Automatic Application**: Setting is applied automatically during WebView2 initialization
- **Runtime Control**: Can be changed dynamically after initialization
- **Cross-compilation**: Successfully builds for Windows target
This implementation addresses the GitHub issue #2021 by providing a clean, idiomatic Go API to disable pinch zoom functionality in Wails applications using WebView2.
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wailsapp/wails#2021