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Reorganize file structure
This commit is contained in:
Zachary Yedidia
207
cmd/micro/bufactionhandler.go
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207
cmd/micro/bufactionhandler.go
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package main
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import (
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"time"
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"github.com/zyedidia/micro/cmd/micro/buffer"
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"github.com/zyedidia/tcell"
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)
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type BufKeyAction func(*BufActionHandler) bool
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type BufMouseAction func(*BufActionHandler, *tcell.EventMouse) bool
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var BufKeyBindings map[KeyEvent]BufKeyAction
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var BufMouseBindings map[MouseEvent]BufMouseAction
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func init() {
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BufKeyBindings = make(map[KeyEvent]BufKeyAction)
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BufMouseBindings = make(map[MouseEvent]BufMouseAction)
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}
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func BufMapKey(k KeyEvent, action string) {
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BufKeyBindings[k] = BufKeyActions[action]
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}
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func BufMapMouse(k MouseEvent, action string) {
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BufMouseBindings[k] = BufMouseActions[action]
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}
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// The BufActionHandler connects the buffer and the window
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// It provides a cursor (or multiple) and defines a set of actions
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// that can be taken on the buffer
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// The ActionHandler can access the window for necessary info about
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// visual positions for mouse clicks and scrolling
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type BufActionHandler struct {
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Buf *buffer.Buffer
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Win *Window
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cursors []*buffer.Cursor
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Cursor *buffer.Cursor // the active cursor
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// Since tcell doesn't differentiate between a mouse release event
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// and a mouse move event with no keys pressed, we need to keep
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// track of whether or not the mouse was pressed (or not released) last event to determine
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// mouse release events
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mouseReleased bool
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// We need to keep track of insert key press toggle
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isOverwriteMode bool
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// This stores when the last click was
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// This is useful for detecting double and triple clicks
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lastClickTime time.Time
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lastLoc buffer.Loc
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// lastCutTime stores when the last ctrl+k was issued.
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// It is used for clearing the clipboard to replace it with fresh cut lines.
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lastCutTime time.Time
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// freshClip returns true if the clipboard has never been pasted.
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freshClip bool
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// Was the last mouse event actually a double click?
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// Useful for detecting triple clicks -- if a double click is detected
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// but the last mouse event was actually a double click, it's a triple click
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doubleClick bool
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// Same here, just to keep track for mouse move events
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tripleClick bool
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}
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func NewBufActionHandler(buf *buffer.Buffer, win *Window) *BufActionHandler {
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a := new(BufActionHandler)
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a.Buf = buf
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a.Win = win
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a.cursors = []*buffer.Cursor{&buffer.Cursor{
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Buf: buf,
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Loc: buf.StartCursor,
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}}
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buf.SetCursors(a.cursors)
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return a
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}
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// HandleEvent executes the tcell event properly
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// TODO: multiple actions bound to one key
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func (a *BufActionHandler) HandleEvent(event tcell.Event) {
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switch e := event.(type) {
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case *tcell.EventKey:
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ke := KeyEvent{
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code: e.Key(),
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mod: e.Modifiers(),
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r: e.Rune(),
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}
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if action, ok := BufKeyBindings[ke]; ok {
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action(a)
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}
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case *tcell.EventMouse:
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me := MouseEvent{
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btn: e.Buttons(),
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mod: e.Modifiers(),
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}
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if action, ok := BufMouseBindings[me]; ok {
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action(a, e)
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}
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}
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}
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var BufKeyActions = map[string]BufKeyAction{
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"CursorUp": (*BufActionHandler).CursorUp,
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"CursorDown": (*BufActionHandler).CursorDown,
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"CursorPageUp": (*BufActionHandler).CursorPageUp,
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"CursorPageDown": (*BufActionHandler).CursorPageDown,
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"CursorLeft": (*BufActionHandler).CursorLeft,
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"CursorRight": (*BufActionHandler).CursorRight,
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"CursorStart": (*BufActionHandler).CursorStart,
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"CursorEnd": (*BufActionHandler).CursorEnd,
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"SelectToStart": (*BufActionHandler).SelectToStart,
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"SelectToEnd": (*BufActionHandler).SelectToEnd,
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"SelectUp": (*BufActionHandler).SelectUp,
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"SelectDown": (*BufActionHandler).SelectDown,
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"SelectLeft": (*BufActionHandler).SelectLeft,
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"SelectRight": (*BufActionHandler).SelectRight,
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"WordRight": (*BufActionHandler).WordRight,
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"WordLeft": (*BufActionHandler).WordLeft,
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"SelectWordRight": (*BufActionHandler).SelectWordRight,
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"SelectWordLeft": (*BufActionHandler).SelectWordLeft,
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"DeleteWordRight": (*BufActionHandler).DeleteWordRight,
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"DeleteWordLeft": (*BufActionHandler).DeleteWordLeft,
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"SelectLine": (*BufActionHandler).SelectLine,
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"SelectToStartOfLine": (*BufActionHandler).SelectToStartOfLine,
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"SelectToEndOfLine": (*BufActionHandler).SelectToEndOfLine,
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"ParagraphPrevious": (*BufActionHandler).ParagraphPrevious,
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"ParagraphNext": (*BufActionHandler).ParagraphNext,
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"InsertNewline": (*BufActionHandler).InsertNewline,
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"InsertSpace": (*BufActionHandler).InsertSpace,
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"Backspace": (*BufActionHandler).Backspace,
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"Delete": (*BufActionHandler).Delete,
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"InsertTab": (*BufActionHandler).InsertTab,
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"Save": (*BufActionHandler).Save,
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"SaveAll": (*BufActionHandler).SaveAll,
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"SaveAs": (*BufActionHandler).SaveAs,
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"Find": (*BufActionHandler).Find,
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"FindNext": (*BufActionHandler).FindNext,
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"FindPrevious": (*BufActionHandler).FindPrevious,
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"Center": (*BufActionHandler).Center,
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"Undo": (*BufActionHandler).Undo,
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"Redo": (*BufActionHandler).Redo,
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"Copy": (*BufActionHandler).Copy,
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"Cut": (*BufActionHandler).Cut,
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"CutLine": (*BufActionHandler).CutLine,
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"DuplicateLine": (*BufActionHandler).DuplicateLine,
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"DeleteLine": (*BufActionHandler).DeleteLine,
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"MoveLinesUp": (*BufActionHandler).MoveLinesUp,
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"MoveLinesDown": (*BufActionHandler).MoveLinesDown,
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"IndentSelection": (*BufActionHandler).IndentSelection,
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"OutdentSelection": (*BufActionHandler).OutdentSelection,
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"OutdentLine": (*BufActionHandler).OutdentLine,
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"Paste": (*BufActionHandler).Paste,
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"PastePrimary": (*BufActionHandler).PastePrimary,
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"SelectAll": (*BufActionHandler).SelectAll,
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"OpenFile": (*BufActionHandler).OpenFile,
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"Start": (*BufActionHandler).Start,
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"End": (*BufActionHandler).End,
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"PageUp": (*BufActionHandler).PageUp,
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"PageDown": (*BufActionHandler).PageDown,
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"SelectPageUp": (*BufActionHandler).SelectPageUp,
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"SelectPageDown": (*BufActionHandler).SelectPageDown,
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"HalfPageUp": (*BufActionHandler).HalfPageUp,
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"HalfPageDown": (*BufActionHandler).HalfPageDown,
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"StartOfLine": (*BufActionHandler).StartOfLine,
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"EndOfLine": (*BufActionHandler).EndOfLine,
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"ToggleHelp": (*BufActionHandler).ToggleHelp,
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"ToggleKeyMenu": (*BufActionHandler).ToggleKeyMenu,
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"ToggleRuler": (*BufActionHandler).ToggleRuler,
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"JumpLine": (*BufActionHandler).JumpLine,
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"ClearStatus": (*BufActionHandler).ClearStatus,
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"ShellMode": (*BufActionHandler).ShellMode,
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"CommandMode": (*BufActionHandler).CommandMode,
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"ToggleOverwriteMode": (*BufActionHandler).ToggleOverwriteMode,
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"Escape": (*BufActionHandler).Escape,
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"Quit": (*BufActionHandler).Quit,
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"QuitAll": (*BufActionHandler).QuitAll,
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"AddTab": (*BufActionHandler).AddTab,
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"PreviousTab": (*BufActionHandler).PreviousTab,
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"NextTab": (*BufActionHandler).NextTab,
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"NextSplit": (*BufActionHandler).NextSplit,
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"PreviousSplit": (*BufActionHandler).PreviousSplit,
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"Unsplit": (*BufActionHandler).Unsplit,
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"VSplit": (*BufActionHandler).VSplitBinding,
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"HSplit": (*BufActionHandler).HSplitBinding,
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"ToggleMacro": (*BufActionHandler).ToggleMacro,
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"PlayMacro": (*BufActionHandler).PlayMacro,
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"Suspend": (*BufActionHandler).Suspend,
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"ScrollUp": (*BufActionHandler).ScrollUpAction,
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"ScrollDown": (*BufActionHandler).ScrollDownAction,
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"SpawnMultiCursor": (*BufActionHandler).SpawnMultiCursor,
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"SpawnMultiCursorSelect": (*BufActionHandler).SpawnMultiCursorSelect,
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"RemoveMultiCursor": (*BufActionHandler).RemoveMultiCursor,
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"RemoveAllMultiCursors": (*BufActionHandler).RemoveAllMultiCursors,
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"SkipMultiCursor": (*BufActionHandler).SkipMultiCursor,
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"JumpToMatchingBrace": (*BufActionHandler).JumpToMatchingBrace,
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// This was changed to InsertNewline but I don't want to break backwards compatibility
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"InsertEnter": (*BufActionHandler).InsertNewline,
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}
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var BufMouseActions = map[string]BufMouseAction{
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"MousePress": (*BufActionHandler).MousePress,
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"MouseMultiCursor": (*BufActionHandler).MouseMultiCursor,
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}
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