84 lines
2 KiB
Go
84 lines
2 KiB
Go
package main
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import "./ui"
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// The session is responsible for managing the UI and the model and handling
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// the interaction between the two and the user.
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type Session struct {
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Model Model
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Frame *Frame
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Commands *CommandMapping
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}
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func NewSession(frame *Frame, model Model) *Session {
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session := &Session{
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Model: model,
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Frame: frame,
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Commands: NewCommandMapping(),
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}
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frame.SetModel(&SessionGridModel{session})
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session.Commands.RegisterViewCommands()
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session.Commands.RegisterViewKeyBindings()
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// Also assign this session with the frame
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frame.Session = session
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return session
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}
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// Input from the frame
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func (session *Session) KeyPressed(key rune, mod int) {
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// Add the mod key modifier
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if (mod & ui.ModKeyAlt != 0) {
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key |= ModAlt
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}
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cmd := session.Commands.KeyMapping(key)
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if cmd != nil {
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err := cmd.Do(SessionCommandContext{session})
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if err != nil {
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session.Frame.ShowMessage(err.Error())
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}
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}
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}
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// The command context used by the session
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type SessionCommandContext struct {
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Session *Session
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}
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func (scc SessionCommandContext) Frame() *Frame {
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return scc.Session.Frame
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}
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// Session grid model
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type SessionGridModel struct {
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Session *Session
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}
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// Returns the size of the grid model (width x height)
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func (sgm *SessionGridModel) Dimensions() (int, int) {
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rs, cs := sgm.Session.Model.Dimensions()
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return cs, rs
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}
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// Returns the size of the particular column. If the size is 0, this indicates that the column is hidden.
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func (sgm *SessionGridModel) ColWidth(int) int {
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return 24
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}
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// Returns the size of the particular row. If the size is 0, this indicates that the row is hidden.
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func (sgm *SessionGridModel) RowHeight(int) int {
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return 1
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}
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// Returns the value of the cell a position X, Y
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func (sgm *SessionGridModel) CellValue(x int, y int) string {
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return sgm.Session.Model.CellValue(y, x)
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}
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